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15. Probability
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Q3 of 50 Page 15

Can – 1/2 be the probability of an event? Explain.

Explanation:


Let P(E) be the probability of an event.


Then,


0 ≤ P(E) ≤ 1


Now, - 1/2 < 0


Therefore, P(E) ≠ - 1/2


Hence, it is not possible.


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1

Find the probability of:

(i) An impossible event


(ii) A certain event

2

A bag contains 10 balls numbered 1 to 10. 1 ball is drawn at random, find the probability that it is an even-numbered ball.

4

In a cricket match, a batsman scored 10 boundaries out of which 2 are sixes, and 8 are fours in 100 balls. Find the probability of hitting a six by a batsman in his inning.

5

A coin is tossed 1000 times out of which head occurs 290 times. Find the probability of getting tails.

Questions · 50
15. Probability
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