Question

The ages (in years) of some teachers of a school are given below.
26, 32, 38, 41, 26, 31, 35, 33, 26, 37
What is the mean age of the teachers?

• A. 23.5 years
• B. 32.5 years
• C. 35 years
• D. 38 years

Answer 1

The correct option is B 32.5 years

$\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}$
$=\frac{26+32+38+41+26+31+35+33+26+37}{10}$
$=\frac{325}{10}=32.5years$
Therefore, the arithmatic mean of the given dataset is 32.5 years.