Question

The arithmetic mean of given data will be 67, 65, 71, 57, 45

• A. 71
• B. 72
• C. 61
• D. 62

Hint:

The arithmetic mean is simply the sum of all data values divided by the number of data points.

Answer 1

The Correct Option is C

The arithmetic mean is given by: \[ \text{Mean} = \frac{\text{Sum of data}}{\text{Number of data points}} \] The sum of the given data is: \[ 67 + 65 + 71 + 57 + 45 = 305 \] There are 5 data points, so the mean is: \[ \text{Mean} = \frac{305}{5} = 61 \] Thus, the correct answer is 61.