When a machine is serviced, between 1 and 5 of its parts are replaced. Records indicate that 7% of machines need 1 part replaced, 8% need 5 parts replaced, 12% need 4 parts replaced, and the mean number of parts replaced per service is 2.82. Let the random variable X be the number of parts that need replacing when a randomly selected machine is serviced. (a) Complete the probability distribution table for X below. 1 2 3 X 4 5 P(X = x) 0.07 0.32 0.41 0.12 0.08

When a machine is serviced, between 1 and 5 of its parts are replaced. Records indicate that 7% of machines need 1 part replaced, 8% need 5 parts replaced, 12% need 4 parts replaced, and the mean number of parts replaced per service is 2.82. Let the random variable X be the number of parts that need replacing when a randomly selected machine is serviced. (a) Complete the probability distribution table for X below. 1 2 3 X 4 5 P(X = x) 0.07 0.32 0.41 0.12 0.08

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.8: Probabilities Of Disjoint And Overlapping Events

Problem 2C

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