If mode and mean of a data are 18 and 21 respectively, then median of the data is
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 20
For a moderately skewed distribution the three averages are linked by the empirical relation Mode = 3 Median − 2 Mean.
Putting in mode 18 and mean 21: \(18=3\times\text{Median}-2\times21\)
\(3\times\text{Median}=18+42=60\)
Median \(=\) 20