Sampling Methods
Math ⇒ Statistics and Probability
Sampling Methods starts at 9 and continues till grade 12.
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See sample questions for grade 11
A population consists of 1000 students. If you select every 10th student from a list, what sampling method are you using?
A researcher uses a phone directory to select every 50th name for a survey. Is this an example of probability or non-probability sampling?
A researcher wants to estimate the average height of students in a university. She randomly selects 10 students from each department. What sampling method is this?
A researcher wants to study the eating habits of students in a school. She divides the students into grades and randomly selects students from each grade. What sampling method is she using?
A population consists of 1000 students. If you select every 10th student from a list, what sampling method are you using?
A population has 5000 people. You want a sample of 100. What is the sampling interval if you use systematic sampling?
A researcher uses a phone directory to select every 50th name for a survey. Is this an example of probability or non-probability sampling?
A researcher wants to estimate the average height of students in a university. She randomly selects 10 students from each department. What sampling method is this?
Which of the following best describes quota sampling?
(1) Randomly selecting individuals from the entire population
(2) Selecting individuals to fill pre-set categories
(3) Selecting every nth individual
(4) Dividing the population into clusters and sampling all members of selected clusters
Which of the following is a disadvantage of convenience sampling?
(1) It is time-consuming
(2) It may not represent the population well
(3) It requires complex calculations
(4) It is always unbiased
Which of the following is a probability sampling method?
(1) Convenience sampling
(2) Simple random sampling
(3) Judgmental sampling
(4) Quota sampling
Which of the following is NOT a characteristic of probability sampling?
(1) Each member has a known chance of selection
(2) Results can be generalized to the population
(3) Selection is based on researcher’s judgment
(4) Randomization is used
Fill in the blank: In ________ sampling, every member of the population has an equal chance of being selected.
Fill in the blank: In ________ sampling, existing study subjects recruit future subjects from among their acquaintances.
Fill in the blank: In ________ sampling, the researcher selects participants who are easiest to reach.
Fill in the blank: In ________ sampling, the researcher uses their own judgment to select participants who are most useful or representative.
True or False: Convenience sampling is a type of probability sampling.
True or False: In cluster sampling, only some members of selected clusters are surveyed.
True or False: In quota sampling, the researcher uses random selection to fill quotas.
True or False: In simple random sampling, each possible sample of the same size has an equal chance of being selected.
