Approximately 12% of the U.S. population is composed of African-Americans. Assuming that the same percentage is true for telephone ownership, what is the probability that when 25 phone numbers are selected at random for a small survey, that 5 of the numbers belong to an African-American family? Select one: O a. 0.4 O b. 0.233 O c. 0.2015 O d. 0.1025

Approximately 12% of the U.S. population is composed of African-Americans. Assuming that the same percentage is true for telephone ownership, what is the probability that when 25 phone numbers are selected at random for a small survey, that 5 of the numbers belong to an African-American family? Select one: O a. 0.4 O b. 0.233 O c. 0.2015 O d. 0.1025

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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