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!
0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5
Adding them together:
0 + 1 + 1 + 2 + 2 + 2 + 3 + 3 + 3 + 3 + 4 + 4 + 4 + 4 + 5 = 41
Dividing by the total number of x's (15):
41 / 15 = 2.73333
The mean number of pets is approximately 2.73.