In a cricket match, a batsman hits a boundary 6 times out of 30 balls he plays. What is the probability that in a given throw, the ball does not hit the boundary?
Total number balls batsman played = 30
Number of batsman hits a boundary = 6
Number of batsman doesn’t hit a boundary = 30 – 6 = 24
Probability P() = 
Probability of batsman not hitting a boundary is
P(no boundary) = 
= 
= 
7