Question

mr. sanchez surveyed classes to aid in planning the end - of - year party. for the first sample, mr. sanchez surveyed every third person on each first - period class roster. for the second sample, mr. sanchez surveyed his five honors math classes. which statement about mr. sanchezs 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.

Explanation:

Sample 1 is a form of systematic sampling by selecting every third person on the roster, which can be considered a relatively unbiased way to sample from first - period classes. However, Sample 2 only surveys honors math classes. Honors math students may have different preferences compared to the general student population, so this sample is likely to be unrepresentative and biased.

Answer:

Sample 2 is biased.