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. Úse 70 as the midpoint for "65 years and over." I Under 4 years: 18.5 I 5-14 years: 39.7 O 15-19 years: 17.4 O 20-24 years: 18.7 I 25-34 years: 40.8 I 35-44 years: 36.2 O 45-64 years: 84.7 O 65 years and over. 54.7 The sample mean is x= (Round to two decimal places as needed. ) The sample standard deviation is s = (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. Úse 70 as the midpoint for "65 years and over." I Under 4 years: 18.5 I 5-14 years: 39.7 O 15-19 years: 17.4 O 20-24 years: 18.7 I 25-34 years: 40.8 I 35-44 years: 36.2 O 45-64 years: 84.7 O 65 years and over. 54.7 The sample mean is x= (Round to two decimal places as needed. ) The sample standard deviation is s = (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
Section10.4: Distributions Of Data
Problem 19PFA
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