For a random sample of 500 students aged 15-17 in the United States, the numbers of hours a week usually spent on talking on a phone are summarized below for female students and male students. (Source of data: Census at School - United States). Group Sample size Sample mean Sample standard deviation Female 277 4.07 10.6 Male 223 2.13 4.3 (The distribution of numbers of hours a week usually spent on talking on a phone for female students has the standard deviation greater than the mean, because it is right skewed and has many severe outliers).

For a random sample of 500 students aged 15-17 in the United States, the numbers of hours a week usually spent on talking on a phone are summarized below for female students and male students. (Source of data: Census at School - United States). Group Sample size Sample mean Sample standard deviation Female 277 4.07 10.6 Male 223 2.13 4.3 (The distribution of numbers of hours a week usually spent on talking on a phone for female students has the standard deviation greater than the mean, because it is right skewed and has many severe outliers).

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 3GP

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