Which of the following sampling techniques could result easily in biased statistics? I. A government employee decides to wait at a train station to survey people about whether they support a certain candidate in an upcoming state election. II. A student council representative uses a random number generator to select 40 of the 400 students in the school to survey them about the appropriateness of holding a winter carnival this school year. III. The principal of a large school assigns a number to each student in the school, places the numbers in a drum, and selects 65 numbers without replacement. He then compares these numbers with the numbered list of students and surveys these students about whether they favor a proposed new policy that requires students to wear their hats to their locker only. IV. The owner of a small business randomly selects 30 of 200 employees and asks them whether they would support a union. a Statement IV b Statements II and III c Statements I and IV d Statement I
Which of the following sampling techniques could result easily in biased statistics? I. A government employee decides to wait at a train station to survey people about whether they support a certain candidate in an upcoming state election. II. A student council representative uses a random number generator to select 40 of the 400 students in the school to survey them about the appropriateness of holding a winter carnival this school year. III. The principal of a large school assigns a number to each student in the school, places the numbers in a drum, and selects 65 numbers without replacement. He then compares these numbers with the numbered list of students and surveys these students about whether they favor a proposed new policy that requires students to wear their hats to their locker only. IV. The owner of a small business randomly selects 30 of 200 employees and asks them whether they would support a union. a Statement IV b Statements II and III c Statements I and IV d Statement I
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 6E
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Which of the following sampling techniques could result easily in biased statistics?
I. A government employee decides to wait at a train station to survey people about whether they support a certain candidate in an upcoming state election.II. A student council representative uses a random number generator to select 40 of the 400 students in the school to survey them about the appropriateness of holding a winter carnival this school year.
III. The principal of a large school assigns a number to each student in the school, places the numbers in a drum, and selects 65 numbers without replacement. He then compares these numbers with the numbered list of students and surveys these students about whether they favor a proposed new policy that requires students to wear their hats to their locker only.
IV. The owner of a small business randomly selects 30 of 200 employees and asks them whether they would support a union.
a |
Statement IV
|
b |
Statements II and III
|
c |
Statements I and IV
|
d |
Statement I
|
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