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Sahay Sir > Question Answers > NCERT Class 9 > Maths > Chapter 15 - Probability > 5. An organisation selected 2400 families at random and surveyed them to determine a relationship between income level and the number of vehicles in a family. The information gathered is listed in the table below: Suppose a family is chosen. Find the probability that the family chosen is (i) earning ₹10000 – 13000 per month and owning exactly 2 vehicles. (ii) earning ₹16000 or more per month and owning exactly 1 vehicle. (iii) earning less than ₹7000 per month and does not own any vehicle. (iv) earning ₹13000 – 16000 per month and owning more than 2 vehicles. (v) owning not more than 1 vehicle.

5. An organisation selected 2400 families at random and surveyed them to determine a relationship between income level and the number of vehicles in a family. The information gathered is listed in the table below: Suppose a family is chosen. Find the probability that the family chosen is (i) earning ₹10000 – 13000 per month and owning exactly 2 vehicles. (ii) earning ₹16000 or more per month and owning exactly 1 vehicle. (iii) earning less than ₹7000 per month and does not own any vehicle. (iv) earning ₹13000 – 16000 per month and owning more than 2 vehicles. (v) owning not more than 1 vehicle.

1. 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.