Free CBSE Class 9 Mathematics Statistics and Probability Probability Worksheets

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Sample CBSE Class 9 Mathematics Statistics and Probability Probability Worksheet Questions

11 defective bulbs are accidentally mixed with 121 good ones. One ball is taken out at random from
this lot. Find the probability that the ball taken out is a good one.

1. 1/12 2. 7/12 3. 11/12 4. 1/11

A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a perfect square number.

Five cards—the ten, jack, queen, king and ace of diamonds, are well-shuffled with their face downwards. One card is then picked up at random. What is the probability that the card is the queen?

Choose the correct option: A three digit number is formed by the digits 1, 2 and 3 with no digit being repeated. The probability that it will be an even number is _____.

1. 1/3 2. 2/3 3. 1/6 4. 5/6

Choose the correct option: Ramesh has 5 yellow, 4 green and 7 blue balls in a bag. The probability that the randomly selected ball is green is ______.

1. 7/16 2. 9/16 3. 1/4 4. 3/4

What is the probability that a number selected from numbers (1,2,3,…………,15) is a multiple of 5?

1. 2/3 2. 1/4 3. 1/5 4. 1/6

Choose the correct option: Two die are thrown simultaneously. The probability that the score is a prime number is ______.

1. 1/6 2. 5/12 3. 1/12 4. 1/9

Find the probability of getting an even prime number on each die when a pair of dice is rolled.

In a cricket match, a bowler takes wicket 5 times out of 60 balls he bowled. Find the probability that he didn't take wicket.

1. 1/6 2. 1/12 3. 1/3 4. None of these

10.

A die is thrown twice. Find the probability that same number will come up either time.

1. 1/6 2. 1/36 3. 1/3 4. 1/12

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