Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Chapter 3, Problem 109H
Table 3.20 gives the number of suicides estimated in the U.S. for a recent year by age, race (black or white), and sex. We are Interested In possible relationships between age, race, and sex. We will let suicide victims be our population.
Table 3.20
a. Fill In the column for the suicides for individuals over age 6.1.
b. Fill In the row for all other races.
c. Find the
d. Find the probability that a randomly selected Individual was a black female.
e. Find the probabili that a randomly selected Individual was black
f. Find the probability that a randomly selected Individual was a black or white male.
g. Out of the Individuals over age 64, find the probabili that a randomly selected individual was a black or white male.
| Race and Sex | 1—14 | 15—24 | 25—64 | over 64 | TOTALS |
| white, male | 210 | 3.360 | 13.610 | — — | 22.050 |
| white, female | 80 | 580 | 3.380 | 4.930 | |
| black, male | 10 | 460 | 1.060 | 1,670 | |
| black, female | 0 | 40 | 270 | 330 | |
| all others | |||||
| TOTALS | 310 | 4.650 | 18,780 | 29,760 |
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Chapter 3 Solutions
Introductory Statistics
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