1.47 A computer chip manufacturer finds that, historically, for every 100 chips produced, 85 meet specifications, 10 need reworking, and 5 need to be discarded. Ten chips an chosen for inspection. (a) What is the probability that all 10 meet specs? (b) What is the probability that 2 or more need to be discarded? (e) What is the probability that 8 meet specs, 1 needs reworking, and 1 will be discarded?

1.47 A computer chip manufacturer finds that, historically, for every 100 chips produced, 85 meet specifications, 10 need reworking, and 5 need to be discarded. Ten chips an chosen for inspection. (a) What is the probability that all 10 meet specs? (b) What is the probability that 2 or more need to be discarded? (e) What is the probability that 8 meet specs, 1 needs reworking, and 1 will be discarded?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

1.47 A computer chip manufacturer finds that, historically, for every 100 chips produced,
85 meet specifications, 10 need reworking, and 5 need to be discarded. Ten chips an
chosen for inspection.
(a) What is the probability that all 10 meet specs?
(b) What is the probability that 2 or more need to be discarded?
(e) What is the probability that 8 meet specs, 1 needs reworking, and 1 will be
discarded?

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