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Survey on Answering Machine Ownership In a survey, 63% of
Chapter 5, Problem 26E(choose chapter or problem)
QUESTION:
Problem 26E
Survey on Answering Machine Ownership In a survey, 63% of Americans said they own an answering machine. If 14 Americans are selected at random, find the probability that exactly 9 own an answering machine.
Source: USA Snapshot. USA TODAY.
Questions & Answers
QUESTION:
Problem 26E
Survey on Answering Machine Ownership In a survey, 63% of Americans said they own an answering machine. If 14 Americans are selected at random, find the probability that exactly 9 own an answering machine.
Source: USA Snapshot. USA TODAY.
ANSWER:
Solution :
Step 1 of 1:
Let n denotes the total Americans is 14.
Let p denotes the 63% they have own an answering machine.
We need to find q value.
q = 1-p
q = 1-0.63
q = 0.37
Hence, q=0.37.