Question

The mean of 20, 30, 38, 40, 50, 56, 60 is:

• A. 42
• B. 44
• C. 46
• D. 48

Hint:

To find the mean of a set of numbers, simply add all the numbers together and divide by the number of values in the set.

Answer 1

The Correct Option is A

To find the mean of the given numbers, we use the formula for the mean: \[ \text{Mean} = \frac{\text{Sum of all values}}{\text{Number of values}} \] The given numbers are: 20, 30, 38, 40, 50, 56, 60. Step 1: Add all the numbers: \[ 20 + 30 + 38 + 40 + 50 + 56 + 60 = 294 \] Step 2: Divide the sum by the number of values, which is 7: \[ \text{Mean} = \frac{294}{7} = 42 \] Thus, the mean is 42.