find the mean 0, 0,0, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 9
answer choices : 2.39, 4.3, 2.87, 4.78
To find the mean, you add up all the numbers and then divide by the total number of values.
0 + 0 + 0 + 1 + 1 + 1 + 1 + 2 + 2 + 3 + 3 + 3 + 3 + 3 + 3 + 4 + 4 + 9 = 43
There are 18 numbers in total.
Mean = 43 / 18 = 2.39
Therefore, the mean is 2.39. The answer choice is 2.39.