In a population of 19,800 subjects, 25% possess a certain characteristic. In a sample of 330 subjects selected from this population, 40% possess the same characteristic. How many subjects in the population and sample, respectively, possess this characteristic? i subjects in the population possess the characteristic i subjects in the sample possess the characteristic Save for Lator

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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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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In a population of 19,800 subjects, 25% possess a certain characteristic. In a sample of 330 subjects
selected from this population, 40% possess the same characteristic. How many subjects in the population
and sample, respectively, possess this characteristic?
i
subjects in the population possess the characteristic
i
subjects in the sample possess the characteristic
Save for Later
Transcribed Image Text:In a population of 19,800 subjects, 25% possess a certain characteristic. In a sample of 330 subjects selected from this population, 40% possess the same characteristic. How many subjects in the population and sample, respectively, possess this characteristic? i subjects in the population possess the characteristic i subjects in the sample possess the characteristic Save for Later
The times that college students spend studying per week have a distribution skewed to the left with a mean
of 8.8 hours and a standard deviation of 2.6 hours. Find the probability that the mean time spent studying
per week for a random sample of 65 college students would be
a. between 8.4 and 9.0 hours.
Round your answer to two decimal places.
P = i
b. less than 8.7 hours.
Round your answer to two decimal places.
P = i
Save for Later
Transcribed Image Text:The times that college students spend studying per week have a distribution skewed to the left with a mean of 8.8 hours and a standard deviation of 2.6 hours. Find the probability that the mean time spent studying per week for a random sample of 65 college students would be a. between 8.4 and 9.0 hours. Round your answer to two decimal places. P = i b. less than 8.7 hours. Round your answer to two decimal places. P = i Save for Later
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