3. A smartphone manufacturer is concerned about the proportion of defectives produced at a certain plant which produces many smartphones every day. Historically, approximately 15% of phones produced at this plant have been defective. As part of their quality assurance testing, 4 smartphones are selected at random from a day's production (a) Let X represent the number of defective phones in the sample of 4 phones. Complete the table below for the probability distribution of X, assuming the historic defective rate holds. 1 2 3 4 P(x) 0.522 0.368 0.001 (b) What is the expected number of defective phones in this sample?

3. A smartphone manufacturer is concerned about the proportion of defectives produced at a certain plant which produces many smartphones every day. Historically, approximately 15% of phones produced at this plant have been defective. As part of their quality assurance testing, 4 smartphones are selected at random from a day's production (a) Let X represent the number of defective phones in the sample of 4 phones. Complete the table below for the probability distribution of X, assuming the historic defective rate holds. 1 2 3 4 P(x) 0.522 0.368 0.001 (b) What is the expected number of defective phones in this sample?

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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