# Free CBSE Class 9 Mathematics Unit 6-Statistics and Probability Probability Worksheets

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## Sample CBSE Class 9 Mathematics Unit 6-Statistics and Probability Probability Worksheet Questions

1.
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
2.
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.
3.
Five cardsâ€”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?
4.
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
5.
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
6.
Two die are thrown simultaneously. Find the probability of getting two numbers whose product is even.
1. 1/6 2. 1/4 3. 1/3 4. 3/4
7.
A card is drawn at random from a well shuffled deck of playing cards. Find the probability of drawing a face card.
1. 2/13 2. 5/52 3. 3/13 4. 6/13
8.
Cards, marked with numbers 5 to 50, are placed in a box and mixed thoroughly. A card is drawn from the box out random. Find the probability that the number on the taken card is an even number less than 10.
1. 2/23 2. 1/23 3. 3/46 4. None of these
9.
What is the probability that two persons have the same birthday?
1. 1/365 2. 364/365 3. 2/365 4. None of these
10.
A card is drawn at random from a well-shuffled deck of playing cards. Find the probability that the card drawn is a red queen.
1. 1/13 2. 1/52 3. 2/13 4. 1/26

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