Chart showing 0 with 3, 1 with 4, 2 with 2, 3 with 6, 4 with 2, and 9 with 1
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)
Responses
2.39
2.39
4.3
4.3
2.87
2.87
4.78
4.78
To find the mean number of pets, we first need to total the number of pets and then divide by the total number of responses.
0 (3 times) + 1 (4 times) + 2 (2 times) + 3 (6 times) + 4 (2 times) + 9 (1 time) = 0*3 + 1*4 + 2*2 + 3*6 + 4*2 + 9*1 = 0 + 4 + 4 + 18 + 8 + 9 = 43
Now, let's divide the total number of pets by the total number of responses:
43 (total number of pets) / 18 (total number of responses) = 2.39
So, the mean number of pets is 2.39.