1) Explain why the following samples might be biased.
a) A research group is studying how effective a hair growth/thickening product is on men. Their research group
consisted of \(20\) bald men.
b) Catherine surveys everyone at her lunch table about whether or not they prefer math or English class.
2) Identify the population, decide whether it would be better to study the entire population or a sample of the population, and explain why you chose to study the entire population or a sample.
a) A children’s television show wants to know if kids enjoy the show.
b) A coach is trying to see how their basketball players do at free throws.
3) The principals from Naperville North and Central decide to survey all of the students from \(20\) random classes about their thoughts on off-campus lunch. Identify the type of sampling used.
4) The city of Naperville decides to survey every \(7th\) house about a potential new ordinance. Identify the type of sampling used.
5) The school assembly separated the freshmen, sophomores, juniors, and seniors into their own bleacher sections. Then, \(10\) students were randomly selected from each bleacher section. Identify the type of sampling used.
Solution Bank
a) A research group is studying how effective a hair growth/thickening product is on men. Their research group
consisted of \(20\) bald men.
b) Catherine surveys everyone at her lunch table about whether or not they prefer math or English class.
2) Identify the population, decide whether it would be better to study the entire population or a sample of the population, and explain why you chose to study the entire population or a sample.
a) A children’s television show wants to know if kids enjoy the show.
b) A coach is trying to see how their basketball players do at free throws.
3) The principals from Naperville North and Central decide to survey all of the students from \(20\) random classes about their thoughts on off-campus lunch. Identify the type of sampling used.
4) The city of Naperville decides to survey every \(7th\) house about a potential new ordinance. Identify the type of sampling used.
5) The school assembly separated the freshmen, sophomores, juniors, and seniors into their own bleacher sections. Then, \(10\) students were randomly selected from each bleacher section. Identify the type of sampling used.
Solution Bank