Number of Pets

Question

What is a Line Plot? (Video & Practice Questions)



Anna asked her classmates how many pets they have. This line plot shows the results. Find the MEAN number of pets.

Process: Each x represents a number. Write down the numbers that the x's represent. Add the numbers together. Divide by the number of x's. Remember, "0" still counts as a number!

(1 point)

Answer 1

The mean number of pets is:

(1 + 0 + 2 + 3 + 1 + 2 + 4 + 3 + 1 + 2 + 0) / 11 = 19 / 11 = 1.727

Therefore, the mean number of pets is approximately 1.727.

Answer 2

These are the answer choices

2.39
2.39

4.3
4.3

2.87
2.87

4.78

Answer 3

To find the mean number of pets, we add up all the numbers that the x's represent and then divide by the total number of x's.

(1 + 0 + 2 + 3 + 1 + 2 + 4 + 3 + 1 + 2 + 0) = 19

There are 11 x's in total.

Mean = 19 / 11 = 1.727

The closest answer choice to the calculated mean of 1.727 is 2.39.