The following table shows the approximate numbers of school goers in a country (residents who attended some educational institution) in 2019, broken down by age group. Age 3–6.9 7–13.9 14–17.9 18–21.9 22–29.9 30–34.9 35–54.9 Population (millions) 14 18 19 15 7 1 4 Use the rounded

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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The following table shows the approximate numbers of school goers in a country (residents who attended some educational institution) in 2019, broken down by age group.
Age 3–6.9 7–13.9 14–17.9 18–21.9 22–29.9 30–34.9 35–54.9
Population
(millions)
14 18 19 15 7 1 4
Use the rounded midpoints of the given measurement classes (round to the nearest half year) to compute the probability distribution of the age X of a school goer. (Round your answers to four decimal places.)
x 5 10.5 16 20 26 32.5 45
P(X = x)
             
Compute the expected value of X. (Round your answer to one decimal place.)
E(X) =
What information does the expected value give about residents enrolled in schools? (Round your answer to one decimal place.)
In 2019,

was years old. 

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