In a cricket match, a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary.

Total number of balls = 30
Number of balls having boundary = 6
Therefore, the number of balls not having boundary = 30 – 6 = 24
P (she did not hit a boundary) = 24/30 = 4/5 = 0.8
Hence, the probability of not hitting a boundary by her is 0.8.