The number of computers sold per day at a local computer store, along with its corresponding probabilities, is shown in table. Find the mean, variance and standard deviation of the distribution. Number of Computers Sold Probability P(X) X 0 0.1 1 0.2 2 0.3 3 0.2 4 0.2 Solution: X-P(X) (x-μ)²-P(X) X P(X) X-μ (x-μ)²

The number of computers sold per day at a local computer store, along with its corresponding probabilities, is shown in table. Find the mean, variance and standard deviation of the distribution. Number of Computers Sold Probability P(X) X 0 0.1 1 0.2 2 0.3 3 0.2 4 0.2 Solution: X-P(X) (x-μ)²-P(X) X P(X) X-μ (x-μ)²

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.3: Special Probability Density Functions

Problem 8E

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