The sampling method, also known as the sampling methodology, is the act of examining a population by acquiring data and evaluating it. It's the data's basis, and the sample space is huge.

There are a few different sampling procedures to choose from, and they may be classified into two categories. All of these sampling methods may include deliberately targeting hard-to-reach or difficult-to-reach populations.

Types of Sampling Method

There are a variety of sampling approaches accessible in statistics to obtain relevant data from a population. The following are the two types of sampling methods:

Probability Sampling

Non-probability Sampling

Probability Sampling

The probability sampling approach employs some form of random selection. Using this method, all of the eligible participants have an equal opportunity to choose a sample from the whole sample of candidates. The non-probability sampling method takes longer and makes it more expensive. Because it ensures that the sample will be representative of the population, probability sampling is a good method to use.

Types of Probability Sampling

Simple random sampling

Systematic sampling

Stratified sampling

Clustered sampling

Non-probability Sampling

In the non-probability sampling method, the sample is chosen by the researcher based on his or her own subjective assessment, rather than using a random selection technique. Because of the limitations of this method, not every person in the population can be included in the research.

Types of Non-probability Sampling

Convenience sampling

Consecutive sampling

Quota sampling

Purposive or Judgmental sampling

Snowball sampling

Following are some of the multiple choice questions on the Sampling Methods with answers that will help the students in developing their knowledge.

Sampling Methods MCQ

1. Identify the sampling design: A campaign intern makes phone calls to ask questions to registered voters regarding their intention to vote on election day.

2. Marianne wanted to know students' opinion on the new schedule at school. So she randomly selected 2 students from each class during second period. This is a form of:

7. A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.She selects the first five who raise their hands.

21. A teacher hands out an index card and asks all of her students to write down the following information: age, height (in inches), and what grade they are in.Which of the following best describes her method of data collection?

23. Identify the sampling design: SCPS wants to survey its employees. They pick 4 schools from the county and survey every single employee in each of the 4 buildings.

24. Leslie wants to find out what show students watch the most. She surveyed the 9 youngest students in the elementary school. Is this sample of the students in the school likely to be representative?

25. Identify the sampling design: School admin conducted a survey on post-graduation plans. Students of senior class 2018 were listed in order by class rank. The school selected a random number between 1 and 15, obtaining a number 11. Then, they selected every 11th student for the survey.

26. Identify the sampling design: The LFCC registrar wants to investigate attitudes of their graduates. The registrar randomly selects 100 names from each of the four past graduating classes.

Number the players from 01-25, read 3 digits at a time from a random table, discarding repeats and numbers over 25, and then stop when I reach 25.

Number the players from 0-299, read 2 digits at a time from a random table, discarding repeats and numbers over 299, and stop when I reach 25.

Number the players from 01-299, read 2 digits at a time from a random table, discarding repeats and numbers over 300, and stop when I reach 25.

Number the players from 001-300, read 3 digits at a time from a random table, discarding repeats, 000 and numbers over 300, and stop when I reach 25.

29. An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 50 blocks and survey all households on each selected block. This is an example of:

31. Political webpages often allow readers to rate (if they want to) whether they strongly agree, agree, disagree, or strongly disagree with the President's decision on any given situation. This is a form of:

32. Elise, a supermarket employee, approached 50 random customers and asked whether they would be willing to discuss what they like most about the store. She interviewed the 22 who said yes. Is this sample of the supermarket's customers likely to be biased?

33. You are investigating the number of dogs in each household in a town. Which of the following descriptions describes a sample. Select all that apply.

the number of dogs in every other household on a street in the town

the number of dogs in one household in the town

the number of dogs in every household in a neighborhood in the town

All of above

34. Karla is doing a study to see what the town thinks of the new grocery store. She chooses a convenience sample. Sheasks 13 people from the town who go to the new grocery store. Is there bias in her sample?

47. This sample is selected by dividing the population into subgroups and then taking a fixed number of units from each group using the simple random sample.

48. You want to ask 100 students their opinions on school dinners so question the first 100 students to enter the dinner hall at lunch time. This is an example of...