Question

Refer to Exercise and the Associated Press/Petside.com poll that revealed that half of all pet owners would get their next dog or cat from a shelter (USA Today, May 12, 2010). Consider a random sample of 500 pet owners and define x as the number of pet owners who would acquire their next dog or cat from a shelter. In Exercise, you determined that x is a binomial random variable.
a. Compute m and s for the probability distribution of x.
b. Compute the z-score for the value x = 240.
c. Compute the z-score for the value x = 270.
d. Use the technique of this section to approximate P(240 < x < 270) .


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  • CreatedMay 20, 2015
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