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!
A. 2.39
B. 4.3
C. 2.87
D. 4.78
To find the mean number of pets, we first need to determine the total number of pets represented by the x's in the line plot.
Looking at the line plot, we see the following numbers represented by the x's:
3, 5, 0, 3, 2, 4, 1, 3, 3, 4
Adding these numbers together:
3 + 5 + 0 + 3 + 2 + 4 + 1 + 3 + 3 + 4 = 28
There are 10 x's in the line plot, so to find the mean number of pets, we divide the total number of pets (28) by the number of x's (10):
Mean = 28 / 10 = 2.8
Therefore, the mean number of pets is 2.8, which is closest to 2.87 (C).
Therefore, the answer is C. 2.87.