A normal distribution has a mean of 183 and a standard deviation of 9.4. Find the probabil that a randomly selected value, x, from the distribution is in the given interval. 42. P(185≤x≤190) 43. P(x ≤205) 44. P(x ≥ 189) The amount of time high school students spend each weeknight doing homework is norm distributed with a mean of 52.5 minutes and a standard deviation of 5.1 minutes. Find indicated probability of time spent each weeknight doing homework. 45. A randomly selected high school student spends at least 40 minutes 46. A randomly selected high school student spends at most 60 minutes 47. A randomly selected high school student spends between 45 minutes and 65 minutes The number of rainy days per year of a certain city is normally distributed with a mean c days with a standard deviation of 4.8 days. Find the indicated probability.
A normal distribution has a mean of 183 and a standard deviation of 9.4. Find the probabil that a randomly selected value, x, from the distribution is in the given interval. 42. P(185≤x≤190) 43. P(x ≤205) 44. P(x ≥ 189) The amount of time high school students spend each weeknight doing homework is norm distributed with a mean of 52.5 minutes and a standard deviation of 5.1 minutes. Find indicated probability of time spent each weeknight doing homework. 45. A randomly selected high school student spends at least 40 minutes 46. A randomly selected high school student spends at most 60 minutes 47. A randomly selected high school student spends between 45 minutes and 65 minutes The number of rainy days per year of a certain city is normally distributed with a mean c days with a standard deviation of 4.8 days. Find the indicated probability.
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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42,43,44
Transcribed Image Text:A normal distribution has a mean of 183 and a standard deviation of 9.4. Find the probability
that a randomly selected value, x, from the distribution is in the given interval.
42. P(185≤x≤190)
43. P(x≤205)
44. P(x ≥ 189)
The amount of time high school students spend each weeknight doing homework is normal
distributed with a mean of 52.5 minutes and a standard deviation of 5.1 minutes. Find
indicated probability of time spent each weeknight doing homework.
45. A randomly selected high school student spends at least 40 minutes
46. A randomly selected high school student spends at most 60 minutes
47. A randomly selected high school student spends between 45 minutes and 65 minutes
The number of rainy days per year of a certain city is normally distributed with a mean of
days with a standard deviation of 4.8 days. Find the indicated probability.
domly selected year will have at most 100 rainy days.
that a
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