# CBSE Class 9 Maths Probability: Experimental Approach

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- a card is drown randomly from a well suffled pack of 52 cards find the probability of getting (1)a king (2)a ace(3)red jacket(4)face card
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- Consider the frequency distribution table given below which gives the weights of 38 students of a class Weight (in kg) 31 â€“ 35 36 â€“ 40 41 â€“ 45 46 â€“ 50 51 â€“ 55 56 â€“ 60 61 â€“ 65 Number of students 9 5 14 3 2 1 4
- Given below is the frequency distribution of wages (in â‚¹) of 50 workers in a school. A worker is selected at random, find the probability that his wages are (i) less than â‚¹120 (ii) at least â‚¹ 130. (iii) more than or equal to â‚¹120.
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- Three coins are tossed simultaneously 250 times and the following frequencies of the outcomes are recorded:
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- A bag contains 12 balls out of which x are white. If one ball is taken out from the bag, find the probability of getting a white ball.
- A die is rolled 150 times and its outcomes are recorded as below: Find the probability of getting: (i) An odd number (ii) A multiple of 4 A die is rolled 150 times and its outcomes are recorded as below: Find the probability of getting: (i) An odd number (ii) A multiple of 4
- A particular make and model of T.V. set has been on the market for six months. During that time 12,492 sets were sold to consumers. Of those, 327 were identified as needing repair during the warranty period. What is the empirical probability that a given T.V. of this make and model will require repair during the warranty period?

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