Access Answers of Maths NCERT Class 9 Chapter 15 – Probability Exercise 15.1 Page: 283 Q1. 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. Sol: According to the question, Total number of balls = 30 Numbers of boundary = 6 Number of time batswoman didn’t hit boundary = 30 – 6 = 24 Probability she did not hit a boundary = 24 30 = 1 = 4 5 Q2. 1500 families with 2 children were selected randomly, and the following data were recorded: Number of girls in a family 2 1 0 Number of families 475 814 211 Compute the probability of a family, chosen at random, having (i) 2 girls ...