If 40% of items from a production unit contains no flaws, 30% contains 3 flaws, 20% contain 5 flaws and 10% contain 6 flaws, what is the expected flaws on a random item. What is the expected variance of the flaw distribution.

If 40% of items from a production unit contains no flaws, 30% contains 3 flaws, 20% contain 5 flaws and 10% contain 6 flaws, what is the expected flaws on a random item. What is the expected variance of the flaw distribution.

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....

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Question

If 40% of items from a production unit contains no flaws, 30% contains 3 flaws, 20% contain 5 flaws and
10% contain 6 flaws, what is the expected flaws on a random item. What is the expected variance of the
flaw distribution.

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