10. Multnomah county recorded the following probabilities for the number of accidents per day on a certain freeway for one month. The number of accidents per day and their corresponding probabilities are shown below. Find the mean, variance, and standard deviation. X P(X) 0 0.4 1 0.2 2 0.2 3 0.1 4 0.1
10. Multnomah county recorded the following probabilities for the number of accidents per day on a certain freeway for one month. The number of accidents per day and their corresponding probabilities are shown below. Find the mean, variance, and standard deviation. X P(X) 0 0.4 1 0.2 2 0.2 3 0.1 4 0.1
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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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Question
10.Multnomah county recorded the following probabilities for the number of accidents per day on a certain freeway for one month. The number of accidents per day and their corresponding probabilities are shown below.
a.) Find the mean
b.) find the variance
c.) find standard deviation.

Transcribed Image Text:10. Multnomah county recorded the following probabilities for the number of accidents per day on a certain
freeway for one month. The number of accidents per day and their corresponding probabilities are shown
below. Find the mean, variance, and standard deviation.
X
P(X)
0
0.4
1
0.2
2
0.2
3
0.1
4
0.1
Expert Solution

Step 1: determine the given variable
X | P(X) |
0 | 0.4 |
1 | 0.2 |
2 | 0.2 |
3 | 0.1 |
4 | 0.1 |
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