Question

$\mathrm{Given}a\mathrm{data}\mathrm{set}\mathrm{consisting}\mathrm{of}\mathrm{just}2\mathrm{observations}\left(\mathrm{each}\mathrm{occuring}\mathrm{once}\right),\mathrm{what}\mathrm{is}\mathrm{true}\mathrm{for}\mathrm{the}\mathrm{given}\mathrm{data}\mathrm{set}?$

• A. Mean and median is same.
• B. Mean and mode is same.
• C. Median and mode is same.
• D. No relation can be determined.

Answer 1

The correct option is A Mean and median is same.

Mean of 2 numbers a and b is $\frac{a+b}{2}$

Median for even number of terms is the average of the 2 middle most terms, which in this case are the only two terms present, therefore median is $\frac{a+b}{2}$.