Question

A nationally known cosmetics company hires a market research firm to test new formulations of moisturizer. Using their extensive list of possible subjects,

the market researchers first divide the subjects into 5 age groups and then randomly select names from each age group to participate in a study. This is an
example of
systematic sampling
a simple random sample
stratified sampling
cluster sampling

Answer 1

Explanation:

A nationally known cosmetics company hires a market research firm to test new formulations of moisturizer. Using their extensive list of possible subjects,

the market researchers first divide the subjects into 5 age groups and then randomly select names from each age group to participate in a study. This is an

example of

systematic sampling

a simple random sample

stratified sampling

cluster sampling