Question

In Exercise, you learned that 50% of pet owners will get their next dog or cat from a Shelter (USA Today, May 12, 2010). In a random sample of 200 pet owners, let x be the number who will get their next dog or cat from a shelter.
a. Find the mean of x.
b. Find the standard deviation of x.
c. Find the z -score for the value x = 110.
d. Find the approximate probability that x is less than or equal to 110.


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  • CreatedMay 20, 2015
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