Question

A student got marks in 5 subjects in a monthly test is 2, 3, 4, 5, 6. In these obtained marks, 4 is the

• A. Mean and median
• B. Median but no mean
• C. Mean but no median
• D. Mode

Answer 1

The correct option is A Mean and median

Increasing order = 2, 3, 4, 5, 6
$Mean=\frac{\text{Sum of terms}}{\text{No. terms}}$
$=\frac{2+3+4+5+6}{5}=\frac{20}{5}=4$
As n = odd
Median $=\left(\frac{n+1}{2}\right)=\left(\frac{5+1}{2}\right)$th
observation = 3rd observation
Median = 4
Hence, 4 is the mean and median.