Question

The student government at the local middle school surveyed students to help plan the end-of-year party. For the first sample, they surveyed every other person at sports practice after school. For the second sample, they surveyed every fifth person entering the cafeteria where all students eat. Which statement about the samples is true? End-of-Year Party Survey Sample 1 Sample 2 Water Park 21 Water Park 36 Bowling/Arcade 36 Bowling/Arcade 28 Zoo 16 Zoo 24 Dance & Dinner 27 Dance & Dinner 12 Sample 1 is biased. Sample 2 is biased. Both samples are biased. Neither sample is biased.

Answer 1

the answer is -- sample one is biased--
hope this helps.

Answer 2

Both samples are biased

Explanation:

Given that

For the first sample, they surveyed every other person at sports practice after school. For the second sample, they surveyed every fifth person entering the cafeteria where all students eat.

Here are of interest is to plan the end of year party. Just because students come for sports practice, they cannot be taken as representative of all students in the school

Hence first sample is biased.

Second sample, is selecting students from cafeteria. All students may not come to cafeteria and hence this group cannot be said to represent the entire students in the school.

Hence this is also biased.

Both samples are biased