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(a) If two dice are rolled, what is the probability that the sum of the upturned faces will equal 7? (b) If two balls are randomly selected from a bowl containing 6 white and 5 black balls, what is the probability that one of the drawn balls is white and the other is black?

(a) If two dice are rolled, what is the probability that the sum of the upturned faces will equal 7? (b) If two balls are randomly selected from a bowl containing 6 white and 5 black balls, what is the probability that one of the drawn balls is white and the other is black?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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4. (a) If two dice are rolled, what is the probability that the sum of the upturned faces will equal 7? (b) If two balls are randomly selected from a bowl containing 6 white and 5 black balls, what is the probability that one of the drawn balls is white and the other is black? (c) A machine operates on a fuse with a lifetime that follows an expo- nential distribution with mean ) hours. What is the probability that the machine will function for at least twice as long as its expected lifetime? (d) A uniform random variable U is distributed on the interval (20, 30). What is the probability that U exceeds 28, given that it exceeds 25?
Transcribed Image Text:4. (a) If two dice are rolled, what is the probability that the sum of the upturned faces will equal 7? (b) If two balls are randomly selected from a bowl containing 6 white and 5 black balls, what is the probability that one of the drawn balls is white and the other is black? (c) A machine operates on a fuse with a lifetime that follows an expo- nential distribution with mean ) hours. What is the probability that the machine will function for at least twice as long as its expected lifetime? (d) A uniform random variable U is distributed on the interval (20, 30). What is the probability that U exceeds 28, given that it exceeds 25?
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