Select the appropriate group to create a stratified random sample of students at your school.
A) 300 students selected at random
B) all the low-income students enrolled in the college
C) all racial and religious groups represented in proportion to their numbers at the college
D) every fifth student selected from an alphabetical listing of names
E) blind picking of students standing outside of a student union building

Question

Quizplus · Accepted Answer

Stratified random sampling involves dividing the population into groups, or strata, and then taking a random sample from each group in proportion to its size to represent the population. Option C is the only one that fits the criteria for a stratified random sample by ensuring that each racial and religious group is represented in proportion to its numbers at the college. Option A is a simple random sample, option B is a purposive sample based on income, option D is systematic sampling, and option E is convenience sampling. Stratified random sampling involves selecting participants from different subgroups in the population in proportion to their representation in the population. Therefore, selecting students from all racial and religious groups represented in proportion to their numbers at the college would be the best choice for creating a stratified random sample of students at the school. This would ensure that the sample is representative of the overall student population in terms of racial and religious diversity.

Select the Appropriate Group to Create a Stratified Random Sample