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1. Thomas, Jessica, and Ann each came up with a sample to conduct a survey to
find the approval rate of the repair process of the school playground. Answer the
questions.
Sampling Approval Rate
Thomas asked 50 96%
students in a 50%
basketball club.
Jessica randomly asked
50 1st grade students.
Ann randomly 78%
asked 50
students.
a. Determine whether Thomas’s sampling is biased or unbiased.
b. Determine whether Jessica’s sampling is biased or unbiased.
c. Determine whether Ann’s sampling is biased or unbiased.
d. What is the approval rate of the unbiased sample?
1. Thomas, Jessica, and Ann each came up with a sample to conduct a survey to
find the approval rate of the repair process of the school playground. Answer the
questions.
Sampling Approval Rate
Thomas asked 50 96%
students in a 50%
basketball club.
Jessica randomly asked
50 1st grade students.
Ann randomly 78%
asked 50
students.
a. Determine whether Thomas’s sampling is biased or unbiased.
b. Determine whether Jessica’s sampling is biased or unbiased.
c. Determine whether Ann’s sampling is biased or unbiased.
d. What is the approval rate of the unbiased sample?
