In a study of teen cell phone use, 117 high school students were observed as they drove out of their high school parking lot after school. Of these drivers, 46 were already talking on their cell phones as they drove out. What is the most probable purpose of this study? A) To find out what percent of high school students have cell phones. B) To find out what percent of cell phone users are high school students.

In a study of teen cell phone use, 117 high school students were observed as they drove out of their high school parking lot after school. Of these drivers, 46 were already talking on their cell phones as they drove out. What is the most probable purpose of this study? A) To find out what percent of high school students have cell phones. B) To find out what percent of cell phone users are high school students.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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Question

In a study of teen cell phone use, 117 high school students were observed as they drove out of their
high school parking lot after school. Of these drivers, 46 were already talking on their cell phones as they drove out. What is the most probable purpose of this study?
A) To find out what percent of high school students have cell phones.
B) To find out what percent of cell phone users are high school students.
C) To find out what percent of high school students use cell phones while driving.
D) To find out what percent of high school students with cell phones drive cars to school.

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