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Örnekleme Stok Fotoğrafları ve Görseller

17,027 gösterme
Crowd behaviors measuring social sampling statistics experiment population research of society Stok Fotoğraf
Crowd behaviors measuring social sampling statistics experiment population research of society
Vektörler
Soil test. female agronomist taking notes in the field. environmental protection, organic soil certification, research
Soil test. female agronomist taking notes in the field. environmental protection, organic soil certification, research
Female doctor drawing a blood sample of male patient in clinic Stok Fotoğraf
Female doctor drawing a blood sample of male patient in clinic
Cluster sampling method in statistics. research on sample collecting data in scientific survey techniques. Stok Fotoğraf
Cluster sampling method in statistics. research on sample collecting data in scientific survey techniques.
Vektörler
Purposive sampling sample taken from a group of people statistic method non-probability technique
Purposive sampling sample taken from a group of people statistic method non-probability technique
Vektörler
Snowball sampling sample taken from a group of people sampling statistic method research Stok Fotoğraf
Snowball sampling sample taken from a group of people sampling statistic method research
Vektörler
Soil test. agronomist putting soil with garden shovel in soil sample bag outdoor. environmental research
Soil test. agronomist putting soil with garden shovel in soil sample bag outdoor. environmental research
Bood test icon - analysis of blood sampling, test tube
Bood test icon - analysis of blood sampling, test tube
Vektörler
Simple random sampling method in statistics. research on sample collecting data in scientific survey techniques.
Simple random sampling method in statistics. research on sample collecting data in scientific survey techniques.
Vektörler
Stratified sampling example, vector illustration diagram. research method explanation scheme with person symbols and stages. population groups called strata and picking random sample from each group. Stok Fotoğraf
Stratified sampling example, vector illustration diagram. research method explanation scheme with person symbols and stages. population groups called strata and picking random sample from each group.
Vektörler
Stratified sampling method in statistics. research on sample collecting data in scientific survey techniques.
Stratified sampling method in statistics. research on sample collecting data in scientific survey techniques.
Vektörler
Sample from population statistics research survey methodology selection concept
Sample from population statistics research survey methodology selection concept
Vektörler
Convenience sample grab accidental sampling or opportunity sampling statistic method non-probability technique
Convenience sample grab accidental sampling or opportunity sampling statistic method non-probability technique
Vektörler
Voluntary response sampling sample taken from a group of people sampling statistic method non-probability technique
Voluntary response sampling sample taken from a group of people sampling statistic method non-probability technique
Vektörler
Laboratory assistant in a protective suit and mask performs an express analysis at the site of contamination of the reservoir
Laboratory assistant in a protective suit and mask performs an express analysis at the site of contamination of the reservoir
Many groups of customers representing several distinct demographics gathered in meetings around signs reading focus group Stok Fotoğraf
Many groups of customers representing several distinct demographics gathered in meetings around signs reading focus group
Blood sample from an arm.
Blood sample from an arm.
Employee in a protective suit and mask conducts a rapid test of water from a river using a mobile laboratory
Employee in a protective suit and mask conducts a rapid test of water from a river using a mobile laboratory
A worker in a protective suit takes samples of water and soil for contamination
A worker in a protective suit takes samples of water and soil for contamination
Random sampling analysis method, vector illustration example diagram. unbiased choosing people sample from the crowd. population statistics and data research science. various person types collection. Stok Fotoğraf
Random sampling analysis method, vector illustration example diagram. unbiased choosing people sample from the crowd. population statistics and data research science. various person types collection.
Vektörler
Soil sampling. female agronomist taking sample with soil probe sampler. environmental protection, organic soil certification, research Stok Fotoğraf
Soil sampling. female agronomist taking sample with soil probe sampler. environmental protection, organic soil certification, research
Soil sampling for chemical analysis and ph test. agrochemical analysis soil and greenhouse soil for fertility. assessment soil contamination with toxic substances. selection fertilizers Stok Fotoğraf
Soil sampling for chemical analysis and ph test. agrochemical analysis soil and greenhouse soil for fertility. assessment soil contamination with toxic substances. selection fertilizers
Patient during blood test sampling procedure taken for analysis
Patient during blood test sampling procedure taken for analysis
Young beautiful woman during blood test sampling procedure
Young beautiful woman during blood test sampling procedure
Soil sampling. female agronomist taking sample with soil probe sampler. environmental protection, organic soil certification, research
Soil sampling. female agronomist taking sample with soil probe sampler. environmental protection, organic soil certification, research
Doctor doing coronavirus covid 19 test for male patient. taking a saliva sample from a man. dna test. collection of mucus from the throat for research in the laboratory. Stok Fotoğraf
Doctor doing coronavirus covid 19 test for male patient. taking a saliva sample from a man. dna test. collection of mucus from the throat for research in the laboratory.
Vector illustration image a doctor using cotton swab to clean the arms before a needle to draw blood from an investigator to check the body
Vector illustration image a doctor using cotton swab to clean the arms before a needle to draw blood from an investigator to check the body
Vektörler
Detail of sampling beaker used for water samples collecting
Detail of sampling beaker used for water samples collecting
Illustration of a female nurse drawing a blood test and a male drawing blood
Illustration of a female nurse drawing a blood test and a male drawing blood
Vektörler
Soil testing flat line icons set. agriculture, planting vector illustrations, hands holding ground with spring, plant fertilizer. thin signs for agrology survey.
Soil testing flat line icons set. agriculture, planting vector illustrations, hands holding ground with spring, plant fertilizer. thin signs for agrology survey.
Vektörler
Sampling method in statistics probabilistic and non-probabilistic quantitative technique
Sampling method in statistics probabilistic and non-probabilistic quantitative technique
Vektörler
Water sampling
Water sampling
Hands of a doctor taking samples of blood tubes for analysis / lab technician drawing blood samples using a tube holder in the clinical laboratory Stok Fotoğraf
Hands of a doctor taking samples of blood tubes for analysis / lab technician drawing blood samples using a tube holder in the clinical laboratory
A man in a protective suit and mask keeps records in a report on the situation at the scene of an environmental accident
A man in a protective suit and mask keeps records in a report on the situation at the scene of an environmental accident
Soil test. female agronomist taking notes in the field. environmental protection, organic soil certification, research
Soil test. female agronomist taking notes in the field. environmental protection, organic soil certification, research
A green man stands in a crowd of people. recruiting a talented candidate. search for a person. promising. different from others. be special. valuable employee. promotion at work, career growth
A green man stands in a crowd of people. recruiting a talented candidate. search for a person. promising. different from others. be special. valuable employee. promotion at work, career growth
In-vitro. collection of perfectly thin icons for web design, app, and the most modern projects. the kit of signs for category medicine.
In-vitro. collection of perfectly thin icons for web design, app, and the most modern projects. the kit of signs for category medicine.
Vektörler
Sample illustration
Sample illustration
Focus group. people with magnifying glass in the design of the information related to the internet Stok Fotoğraf
Focus group. people with magnifying glass in the design of the information related to the internet
Soil test. female agronomist taking notes in the field. environmental protection, organic soil certification, research
Soil test. female agronomist taking notes in the field. environmental protection, organic soil certification, research
Systematic sampling method in statistics. research on sample collecting data in scientific survey techniques.
Systematic sampling method in statistics. research on sample collecting data in scientific survey techniques.
Vektörler
Soil fertility analysis. female agronomist taking soil sample. environmental protection, organic soil certification, research, close up
Soil fertility analysis. female agronomist taking soil sample. environmental protection, organic soil certification, research, close up
Baking soda and vinegar-balloon experiment-science Stok Fotoğraf
Baking soda and vinegar-balloon experiment-science
Vektörler
Checking the quality of water in wastewater. test tube with a sample in hand. sewage treatment Stok Fotoğraf
Checking the quality of water in wastewater. test tube with a sample in hand. sewage treatment
Water sampling
Water sampling
Sampling blood tests, analysis and issuance of the result. medical laboratory with tiny people. flat vector illustration.
Sampling blood tests, analysis and issuance of the result. medical laboratory with tiny people. flat vector illustration.
Vektörler
A man in a protective suit and mask holds a suitcase with equipment and a tablet in his hands to record research results
A man in a protective suit and mask holds a suitcase with equipment and a tablet in his hands to record research results
Soil line icon set. included the icons as earth, compost, land, dirt, ground and more.
Soil line icon set. included the icons as earth, compost, land, dirt, ground and more.
Vektörler
Magnifier with focus on two sample of a products. sampling inspection and statistical quality control concept. 3d illustration.
Magnifier with focus on two sample of a products. sampling inspection and statistical quality control concept. 3d illustration.
Doctor taking blood sample from giant test tube, isolated cartoon woman
Doctor taking blood sample from giant test tube, isolated cartoon woman
Vektörler
Soil sampling. female agronomist taking sample with soil probe sampler. environmental protection, organic soil certification, research Stok Fotoğraf
Soil sampling. female agronomist taking sample with soil probe sampler. environmental protection, organic soil certification, research
A soil science concept. scientist is holding in hands a jar with soil sample and scoop. Stok Fotoğraf
A soil science concept. scientist is holding in hands a jar with soil sample and scoop.
Wastewater samples, analysis of sars-cov-2 virus in patients infected by human coronavirus 229e, conceptual image Stok Fotoğraf
Wastewater samples, analysis of sars-cov-2 virus in patients infected by human coronavirus 229e, conceptual image
Soil test. female agronomist taking notes in the field. environmental protection, organic soil certification, research
Soil test. female agronomist taking notes in the field. environmental protection, organic soil certification, research
Drinkable water quality test for magnesium - lab proofs in modern pharmaceutical university clinic, medical 3d illustration
Drinkable water quality test for magnesium - lab proofs in modern pharmaceutical university clinic, medical 3d illustration
People crowd pie chart group graphic sampling statistics Stok Fotoğraf
People crowd pie chart group graphic sampling statistics
Vektörler
Capillary sampling. finger prick blood collection
Capillary sampling. finger prick blood collection
Vektörler
Image of dog with medical mask on white background
Image of dog with medical mask on white background
Doctor hand in a blue sterile glove holds a cotton swab for sampling smear analysis from the oral cavity for a virus test, mock up medical theme isolated on white background with copy space.
Doctor hand in a blue sterile glove holds a cotton swab for sampling smear analysis from the oral cavity for a virus test, mock up medical theme isolated on white background with copy space.
Patient blood sampling by a laboratory technician for general blood testing.
Patient blood sampling by a laboratory technician for general blood testing.
Material pattern with tiles and natural stone for bathroom and kitchen flooring and wall, planning for renovation interior work in an apartment building Stok Fotoğraf
Material pattern with tiles and natural stone for bathroom and kitchen flooring and wall, planning for renovation interior work in an apartment building
Competent medical worker wearing rubber gloves while disinfecting hand before doing prick Stok Fotoğraf
Competent medical worker wearing rubber gloves while disinfecting hand before doing prick
A blood sample for a test for diabetic ketoacidosis (ðšetone – test). the doctor’s hand holds a magnifying glass in which a test tube with a blood sample for laboratory research. Stok Fotoğraf
A blood sample for a test for diabetic ketoacidosis (ðšetone – test). the doctor’s hand holds a magnifying glass in which a test tube with a blood sample for laboratory research.
Color selection process at a trendy fashion company - close up on woman inspecting a green lab dye fabric sample with tablet computer and color fan in relaxed sunny balcony surrounding
Color selection process at a trendy fashion company - close up on woman inspecting a green lab dye fabric sample with tablet computer and color fan in relaxed sunny balcony surrounding
Nobel coronavirus covid-19 vaccine vial, in a biological laboratory with a biological tube for analysis and sampling of covid-19 infectious disease.
Nobel coronavirus covid-19 vaccine vial, in a biological laboratory with a biological tube for analysis and sampling of covid-19 infectious disease.
Autosampler of nmr spectrometer loaded with samples for analysis, scientific research background
Autosampler of nmr spectrometer loaded with samples for analysis, scientific research background
The doctor takes the boy blood from a vein. taking blood from a child for research and laboratory analysis
The doctor takes the boy blood from a vein. taking blood from a child for research and laboratory analysis
A drill tower on the water in the background of the sky in the countryside. 2019
A drill tower on the water in the background of the sky in the countryside. 2019
Image of mask bottle white background
Image of mask bottle white background
Old patient visiting young male doctor in blood sampling concept
Old patient visiting young male doctor in blood sampling concept
Curious cat looking at his owner while collecting urine sample with dosing pipette for urinalysis and comparing analysis results. urine reagent strips to prevent urinary infections in feline. Stok Fotoğraf
Curious cat looking at his owner while collecting urine sample with dosing pipette for urinalysis and comparing analysis results. urine reagent strips to prevent urinary infections in feline.
Case study written on a chalkboard in the office.
Case study written on a chalkboard in the office.
Microbiologist with a tube of blood contaminated by coronavirus and a sample of it analyzed under a microscope / doctor in the laboratory with a blood tube for analysis and sampling of coronavirus under the microscope Stok Fotoğraf
Microbiologist with a tube of blood contaminated by coronavirus and a sample of it analyzed under a microscope / doctor in the laboratory with a blood tube for analysis and sampling of coronavirus under the microscope
Curious cat looking at his owner while collecting urine sample with dosing pipette for urinalysis and comparing analysis results. urine reagent strips to prevent urinary infections in feline.
Curious cat looking at his owner while collecting urine sample with dosing pipette for urinalysis and comparing analysis results. urine reagent strips to prevent urinary infections in feline.
Image of dog with mask on white background
Image of dog with mask on white background
Water sampling by an experienced ecologist from a forest river Stok Fotoğraf
Water sampling by an experienced ecologist from a forest river
A blood sample for a test for nipt (non invasive prenatal testing). the doctor’s hand holds a magnifying glass in which a test tube with a blood sample for laboratory research, diagnosis for fetal down syndrome in pregnancy woman
A blood sample for a test for nipt (non invasive prenatal testing). the doctor’s hand holds a magnifying glass in which a test tube with a blood sample for laboratory research, diagnosis for fetal down syndrome in pregnancy woman
Chemist with blue protective gloves hold test tube-positive analysis result
Chemist with blue protective gloves hold test tube-positive analysis result
Nurse introducing the coronavirus vaccine introducing a needle into a vein of arm of woman.
Nurse introducing the coronavirus vaccine introducing a needle into a vein of arm of woman.
Patient blood sampling by a laboratory technician for general blood testing. 2019
Patient blood sampling by a laboratory technician for general blood testing. 2019
Word sampling written in 3d with a micrometer over a blue background. quality control concept. 3d illustration
Word sampling written in 3d with a micrometer over a blue background. quality control concept. 3d illustration
Bourbon flight with selective focus on four samples
Bourbon flight with selective focus on four samples
Hands in blue sterile gloves hold a sealed bag with a cotton swab for sampling smear analysis, medicine testing for the presence of a virus disease.
Hands in blue sterile gloves hold a sealed bag with a cotton swab for sampling smear analysis, medicine testing for the presence of a virus disease.
Test for antibodies to coronavirus infection. checking the population for immunity to covid 19. presence of immunity in the blood of a patient who has had a coronavirus. creating a vaccine.
Test for antibodies to coronavirus infection. checking the population for immunity to covid 19. presence of immunity in the blood of a patient who has had a coronavirus. creating a vaccine.
Mid adult woman speaking to a beauty product sales representative at a product party. she is sampling a beauty product.
Mid adult woman speaking to a beauty product sales representative at a product party. she is sampling a beauty product.
Curious cat looking at his owner while collecting urine sample with dosing pipette for urinalysis and comparing analysis results. urine reagent strips to prevent urinary infections in feline.
Curious cat looking at his owner while collecting urine sample with dosing pipette for urinalysis and comparing analysis results. urine reagent strips to prevent urinary infections in feline.
Nobel coronavirus covid-19 vaccine vial, in a biological laboratory with a biological tube for analysis and sampling of covid-19 infectious disease.
Nobel coronavirus covid-19 vaccine vial, in a biological laboratory with a biological tube for analysis and sampling of covid-19 infectious disease.
A blood sample for a test for hormone (amh test), evaluate of ovarian function and fertility in woman. the doctor’s hand holds a magnifying glass in which a test tube with a blood sample for laboratory research. Stok Fotoğraf
A blood sample for a test for hormone (amh test), evaluate of ovarian function and fertility in woman. the doctor’s hand holds a magnifying glass in which a test tube with a blood sample for laboratory research.
Test tubes and protection material to perform a covid-19 test against the virus epidemic in the united states of america. Stok Fotoğraf
Test tubes and protection material to perform a covid-19 test against the virus epidemic in the united states of america.
Doctor in the laboratory with a biological tube for analysis and sampling of covid-19 infectious disea. Stok Fotoğraf
Doctor in the laboratory with a biological tube for analysis and sampling of covid-19 infectious disea.
In a chemistry lab, a female researcher holds a test tube with the coronavirus virus. analysis, protection and medicines to fight the epidemic.
In a chemistry lab, a female researcher holds a test tube with the coronavirus virus. analysis, protection and medicines to fight the epidemic.
Blood sampling from a patient's vein in the laboratory. aids and infection testing Stok Fotoğraf
Blood sampling from a patient's vein in the laboratory. aids and infection testing
The doctor takes the boy blood from a vein. taking blood from a child for research and laboratory analysis
The doctor takes the boy blood from a vein. taking blood from a child for research and laboratory analysis
Close up hand in a blue sterile gloves to give cotton swab to bottle for sampling smear analysis from oral cavity for virus test, mock up medical theme isolated on white background with copy space. Stok Fotoğraf
Close up hand in a blue sterile gloves to give cotton swab to bottle for sampling smear analysis from oral cavity for virus test, mock up medical theme isolated on white background with copy space.
Young agronomist checking soil quality at field
Young agronomist checking soil quality at field
Autosampler of nmr spectrometer loaded with samples for analysis, scientific research background Stok Fotoğraf
Autosampler of nmr spectrometer loaded with samples for analysis, scientific research background
A blood sample for a test for c-peptide test, diabetes diagnosis. the doctor’s hand holds a magnifying glass in which a test tube with a blood sample for laboratory research.
A blood sample for a test for c-peptide test, diabetes diagnosis. the doctor’s hand holds a magnifying glass in which a test tube with a blood sample for laboratory research.
A doctor in a protective suit taking a nasal swab from a person to test for possible coronavirus infection. nasal mucus testing for viral infections.
A doctor in a protective suit taking a nasal swab from a person to test for possible coronavirus infection. nasal mucus testing for viral infections.
Microbiologist with a tube of biological sample contaminated by coronavirus for analysis under a microscope / doctor in the laboratory with a biological fluids tube for analysis and sampling of coronavirus infectious disease
Microbiologist with a tube of biological sample contaminated by coronavirus for analysis under a microscope / doctor in the laboratory with a biological fluids tube for analysis and sampling of coronavirus infectious disease
Scientist in the laboratory looks at blood sampling during the coronavirus and covid 19 pandemic
Scientist in the laboratory looks at blood sampling during the coronavirus and covid 19 pandemic