# Question: In Exercise you learned that 50 of pet owners will

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.

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.

**View Solution:**## Answer to relevant Questions

The length of time between arrivals at a hospital clinic has an approximately exponential probability distribution. Suppose the mean time between arrivals for patients at a clinic is 4 minutes. a. What is the probability ...A physical-fitness association is including the mile run in its secondary-school fitness test for students. The time for this event is approximately normally distributed with a mean of 450 seconds and a standard deviation of ...The net weight per bag of a certain brand of corn chips is listed as 10 ounces. The weight of chips actually dispensed in each bag by an automated machine, when operating to specifications, is a normal random variable with ...Suppose a random sample of n measurements is selected from a population with mean μ = 100 and variance σ2 = 100. For each of the following values of n, give the mean and standard deviation of the sampling distribution of ...According to the American Automobile Association (AAA), the average cost of a gallon of regular unleaded fuel at gas stations in August 2010 was $2.78 (AAA Fuel Gauge Report). Assume that the standard deviation of such costs ...Post your question