You want to estimate the number of students in a hig bus to school. Which sample is unblased? A. 4 students in the hallway B. all students on the soccer team C. 50 twelfth-grade students at random D. 100 students at random during lunch

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 4E
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Identifying an Unbiased Sample
You want to estimate the number of students in a hig
bus to school. Which sample is unbiased?
A. 4 students in the hallway
B. all students on the soccer team
C. 50 twelfth-grade students at random
D. 100 students at random during lunch
Choice A is not large enough to provide
accurate data.
Choice B is not selected at random.
STOP
Choice C is not representative of the
population because twelfth-grade
students are favored over other students.
Choice D is representative of the population
because it is selected at random and is large
enough to provide accurate data.
So, the correct answer is D.
Try It
1. WHAT IF? You want to estimate the number of twelfti
in a high se hool who ride a bus to school. Which sam
Transcribed Image Text:Identifying an Unbiased Sample You want to estimate the number of students in a hig bus to school. Which sample is unbiased? A. 4 students in the hallway B. all students on the soccer team C. 50 twelfth-grade students at random D. 100 students at random during lunch Choice A is not large enough to provide accurate data. Choice B is not selected at random. STOP Choice C is not representative of the population because twelfth-grade students are favored over other students. Choice D is representative of the population because it is selected at random and is large enough to provide accurate data. So, the correct answer is D. Try It 1. WHAT IF? You want to estimate the number of twelfti in a high se hool who ride a bus to school. Which sam
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