The estimated distribution (in millions) of the population by age in a certain country for the year 2015 is shown in the pie chart. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Use 70 as the midpoint for "65 years and over." The sample mean is x = Under 4 years: 23.3 5-14 years: 42.4 15-19 years: 19.2 20-24 years: 23.5 25-34 years: 43.5 35-44 years: 40.3 45-64 years: 81.8 65 years and over: 52.9 (Round to two decimal places as needed.) ▶

The estimated distribution (in millions) of the population by age in a certain country for the year 2015 is shown in the pie chart. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Use 70 as the midpoint for "65 years and over." The sample mean is x = Under 4 years: 23.3 5-14 years: 42.4 15-19 years: 19.2 20-24 years: 23.5 25-34 years: 43.5 35-44 years: 40.3 45-64 years: 81.8 65 years and over: 52.9 (Round to two decimal places as needed.) ▶

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 22SGR

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