Answered: Obtain the cumulative distribution…

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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Question

Three couples and two single individuals have been invited to an investment seminar and have agreed to attend. Suppose the probability that any particular couple or individual arrives late is 0.38 (a couple will travel together in the same vehicle, so either both people will be on time or else both will arrive late). Assume that different couples and individuals are on time or late independently of one another. Let X = the number of people who arrive late for the seminar.

(a) Determine the probability mass function of X. [Hint: label the three couples #1, #2, and #3 and the two individuals #4 and #5.] (Round your answers to four decimal places.)

x	P(X = x)
0
1
2	0.2029 0.2029
3
4
5
6
7
8

(b) Obtain the cumulative distribution function of X. (Round your answers to four decimal places.)

x	F(x)
0
1
2
3
4
5
6
7
8

Use the cumulative distribution function of X to calculate

P(3 ≤ X ≤ 7).

(Round your answer to four decimal places.)

P(3 ≤ X ≤ 7) =

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