What is the mean of the numbers obtained on throwing a die having written 1 on three faces, 2 on two faces and 5 on 1 face?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 2
Values on the die: three faces show $1$, two faces show $2$, one face shows $5$.
Mean $=\frac{1+1+1+2+2+5}{6}$
$=\frac{12}{6}$
$=2$