139, 145, 150, 136, 152, 144, 138
What is the mean?
The mean is calculated by adding up all the numbers and dividing the sum by the total number of numbers.
In this case, the sum of the numbers is 139 + 145 + 150 + 136 + 152 + 144 + 138 = 1004.
There are 7 numbers in total, so the mean is 1004/7 = 143.43 (rounded to two decimal places).