The county highway department recorded the following probabilities for the number ol ac a certain freeway for one month. The number of accidents per day and their corresponding probabilities are shown. (Round your answers to three decimal places if needed.) Number of accidents, X 0 1 2 3 4 Probability P(X) 0.3 0.2 y 0.2 |0.1 a. Find y so that this is a valid probability distribution. b. Find the mean of this distribution using the value found for y in part a. c. Find the expected value of number of accidents per day. d. The variance and standard deviation of this distribution using the value found for y in part a are respectively, and

The county highway department recorded the following probabilities for the number ol ac a certain freeway for one month. The number of accidents per day and their corresponding probabilities are shown. (Round your answers to three decimal places if needed.) Number of accidents, X 0 1 2 3 4 Probability P(X) 0.3 0.2 y 0.2 |0.1 a. Find y so that this is a valid probability distribution. b. Find the mean of this distribution using the value found for y in part a. c. Find the expected value of number of accidents per day. d. The variance and standard deviation of this distribution using the value found for y in part a are respectively, and

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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