A theme park records the group sizes of ticket purchasers and the information is stored in the data table above.
What was the average group size of people going to the park that day?

Question

A theme park records the group sizes of ticket purchasers and the information is stored in the data table above.
 What was the average group size of people going to the park that day?

Quizplus · Accepted Answer

First, we need to find the total number of people at the park. In order to determine the number of people in the park, you first have to multiply each group size by the number of that group.
(1 • 3) = 3
(2 • 18) = 36
(3 • 35) = 105
(4 • 80) = 320
(5 • 76) = 380
(6 • 72) = 432
Then, you add everything together.
3 + 36 + 105 + 320 + 380 + 432 = 1276
Then, we find the total number of groups at the park by adding together the numbers in the right hand column:
3 + 18 + 35 + 80 + 76 + 72 = 284
Then we divide the total number of people by the total number of groups in the park:
1276 ÷ 284 = 4.492 which rounds to 4.5

A Theme Park Records the Group Sizes of Ticket Purchasers