Question

One day, a pet supply store selected every 20th person on a customer list and asked each how many dogs he or she had at home. Ten persons were asked in all.
Number of dogs at home: 2, 1, 3, 2, 2, 1, 4, 0, 1, 4

What is an estimate of the mean number of dogs in a customer’s home?

Answer 1

To find the number of dogs per customer on average, simply divide the total number of dogs by the number of customers that were asked. So we have 2+1+3+2+2+1+4+0+1+4/10 = 2. Hence the answer is 2.