Question

Given the following frequency table, calculate the mean of X.
X: 4 5 6 7 8 9 10 11 12 13 14

Answer 1

To calculate the mean (average) of a data set, sum up all the numbers and divide by the total count.

Step-by-step explanation:

To calculate the mean (average) of the data set X: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, we sum up all the numbers and divide by the total count. Here's the step-by-step calculation:

1. Add all the numbers together: 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 = 99
2. Count the total number of values in the data set: 11
3. Divide the sum by the count: 99 / 11 = 9

So, the mean of X is 9.