Refer to Exercise 7.59. In exercise 7.59 A fire inspector has conducted an extensive analysis of the

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Refer to Exercise 7.59.

In exercise 7.59

A fire inspector has conducted an extensive analysis of the number of smoke detectors and the number of carbon monoxide detectors in the homes in a large city. The analysis led to the creation of the following bivariate probability distribution.

Carbon Monoxide Detectors 1 2 Smoke Detectors .42 .03 .15 .07 .01 .06 .10 .15 .05 3 .04 .02 2.


a. Determine the probability distribution of smoke detectors.

b. What is the mean, variance, and standard deviation of the number of smoke detectors?

Distribution
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