Question

Find the mean of :
28, 24, 37, 42, 56, 59, 67, 28, 15, 32,

• A. 32.5
• B. 38.8
• C. 42.3
• D. none of these

Answer 1

The correct option is B 38.8

$28,24,37,42,56,59,67,28,15,32$.

To find the mean of given data we have to average in ascending order.

Let $y=15,24,28,28,32,37,42,56,59,67$

Total term$=10$

Hence $\overline{y}=$ mean $=\frac{sumofallterms}{no.ofterms}$

$\overline{y}=\frac{15+24+28+28+32+37+42+56+59+67}{10}$

$\overline{y}=\frac{388}{10}=38.8$

Hence mean is $38.8$.