Public Opinion reported that 5% of Americans are afraid of being alone in a house at night. If a random sample of 20 Americans is selected, find these probabilities by using the binomial distribution. a) There are exactly 5 people in the sample who are afraid of being alone at night. b) There are at most 3 people in the sample who are afraid of being alone at night.
Public Opinion reported that 5% of Americans are afraid of being alone in a house at night. If a random sample of 20 Americans is selected, find these probabilities by using the binomial distribution. a) There are exactly 5 people in the sample who are afraid of being alone at night. b) There are at most 3 people in the sample who are afraid of being alone at night.
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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Public Opinion reported that 5% of Americans are afraid of being alone in a house at night. If a random sample of
20 Americans is selected, find these probabilities by using the binomial distribution.
a) There are exactly 5 people in the sample who are afraid of being alone at night.
b) There are at most 3 people in the sample who are afraid of being alone at night.
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