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13th Edition

Anderson

Publisher: CENGAGE L

ISBN: 9781305881884

Chapter 5.3, Problem 15E

Textbook Problem

The following table provides a probability distribution for the random variable *x*.

x |
f (x) |

3 | .25 |

6 | .50 |

9 | .25 |

- a. Compute
*E*(*x*), the expected value of*x*. - b. Compute
*σ*^{2}, the variance of*x*. - c. Compute
*σ*, the standard deviation of*x*.

STATISTICS F/BUSINESS+ECONOMICS-TEXT

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