Calculations:
(0 x 3) + (1 x 4) + (2 x 2) + (3 x 6) + (5 x 0) + (6 x 0) + (7 x 0) + (8 x 0) + (9 x 1) + (10 x 0) = 0 + 4 + 4 + 18 + 0 + 0 + 0 + 0 + 9 + 0 = 35
Total number of x's = 3 + 4 + 2 + 6 + 0 + 0 + 0 + 0 + 1 + 0 = 16
Mean = 35 / 16 = 2.1875
Therefore, the mean number of pets is 2.1875.
Number of Pets
0 = 3
1 = 4
2 = 2
3 = 6
5 = 0
6 = 0
7 = 0
8 = 0
9 = 1
10 = 0
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 answer