Asked by twin

Rogny wants to estimate the percentage of high-school seniors in his city who
plan to attend City Community College. He conducts 15 surveys in senior
classrooms throughout the city. Each survey receives the same number of
responses. The dot plot shows the percentage of seniors in each survey who
plan to attend City Community College.

30

40

Percentage of Seniors Planning to Attend CCC

Which is the best estimate of the percentage of seniors in the city who plan to
attend City Community College?
A

C

50

60

70

80

90

65%

35%

B

D

55%

45%

All Answers 1

Answered by GPT-5 mini AI
55%.

Because each survey has the same number of responses, each dot is equally weighted. The dots are centered around the mid-50s, so the best estimate (the sample mean) is about 55% (choice C).