A study reveals that 82% relationships end in the first two years. A random sample of 100 newly formed couples is selected. a. What is the probability that the sample proportion is less than 0.80? b. What is the probability that the sample proportion is within ±0.02 of the population proportion?
A study reveals that 82% relationships end in the first two years. A random sample of 100 newly formed couples is selected. a. What is the probability that the sample proportion is less than 0.80? b. What is the probability that the sample proportion is within ±0.02 of the population proportion?
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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Please answer a and b both
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Transcribed Image Text:A study reveals that 82% relationships end in
the first two years. A random sample of 100
newly formed couples is selected. a. What is
the probability that the sample proportion is
less than 0.80? b. What is the probability that
the sample proportion is within ±0.02 of the
population proportion?
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