Question

Runs scored by $22$ batsmen in a test match are given here:

Runs	$0-9$	$10-19$	$20-29$	$30-39$	$40-49$	$50$ and above
No. of batsman	$2$	$4$	$3$	$5$	$4$	$4$

Find the probability that a batsman selected at random scored runs
between $20$ and $39$

Answer 1

Total number of batsmen $=22$

Number of batsmen scoring runs between $20$ and $39=3+5=8$

Hence the probability that a batsman selected at random scored runs

between $20$ and $39$ = $\frac{\text{number of favorable outcomes}}{\text{Total number of outcomes}}=\frac{8}{22}=\frac{4}{11}$