18. One of the findings of a group of marketing research students is that 47% of working mothers hold full-time jobs. If a random sample of 40 working mothers is drawn, what is the probability that: a. exactly 10 mothers will hold full-time jobs? b. at most 5 mothers will hold full-time jobs? c. at least 36 mothers will hold full-time jobs?

18. One of the findings of a group of marketing research students is that 47% of working mothers hold full-time jobs. If a random sample of 40 working mothers is drawn, what is the probability that: a. exactly 10 mothers will hold full-time jobs? b. at most 5 mothers will hold full-time jobs? c. at least 36 mothers will hold full-time jobs?

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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