Question

A college has 480 students. Each student is numbered 1 through 480. A sample of 25 students is needed, so a computer randomly generates 25 numbers from 1 through 480. What kind of sampling method is being used?

convenience sampling

simple random sampling

systematic sampling

volunteer sampling

Answer 1

The answer is simple random

Answer 2

Convenience. She just asked whoever she saw.

Simple random sampling. There was no sort of grouping or anything involved, and they tell you random numbers were used.

121 of 162 said yes, so the experimental probability is 121/162
4055 * 121/162 = 3028.73... = 3029 people.
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