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

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

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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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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