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A lechnician select and randomly 4 of these printers in order to be checked. Then, a) write the formula for p(r), the probability distribution of the variable z, which indicates the number of laser printers; b) find the probability that exactly 4 are laser printers; c) find the probability that 3 out of 4 are laser printers;

A lechnician select and randomly 4 of these printers in order to be checked. Then, a) write the formula for p(r), the probability distribution of the variable z, which indicates the number of laser printers; b) find the probability that exactly 4 are laser printers; c) find the probability that 3 out of 4 are laser printers;

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
Problem 1P
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Problem 5 A university warehouse has received a shipment of 13 printers, of which 5 are laser printers and 8 are inkjet models. A technician select and randomly 4 of these printers in order to be checked. Then, a) write the formula for p(x), the probability distribution of the variable r, which indicates the number of laser printers; b) find the probability that exactly 4 are laser printers; c) find the probability that 3 out of 4 are laser printers;
Transcribed Image Text:Problem 5 A university warehouse has received a shipment of 13 printers, of which 5 are laser printers and 8 are inkjet models. A technician select and randomly 4 of these printers in order to be checked. Then, a) write the formula for p(x), the probability distribution of the variable r, which indicates the number of laser printers; b) find the probability that exactly 4 are laser printers; c) find the probability that 3 out of 4 are laser printers;
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