Use the following information to answer questions 28-30.
Each of the 200 people in a random sample of the 2,500 people at the mall today was asked which, if any, of the following types of pets he or she owns: bird, cat, dog, or fish. All 200 people answered the question. The answers were tallied, and the exact percents of people who own the pets are shown in the diagram below.
28. Because this was a random sample, the percents in the sample are the most likely estimates for the corresponding percents among all the people at the mall today. What estimate does this give for the number of people at the mall today who own dogs but none of the other 3 types of pets?
Your Answer is
Correct Answer is H
Explanation
Because the total number of people is 2500, the proportion of people who only own dogs is determined to be 15% through a sample survey of 200, so the estimated number of people who own dogs in the population is: 0.15×2500