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Mathematics
15. Probability
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Q6 of 50 Page 15

If two coins are tossed simultaneously, find the probability of getting at least one head.

Concept Used:



Explanation:


When two coins are tossed together, total events = {(H, H), (H, T), (T, H), (T, T)}


Now, at least one head means 1 or more than 1 head.


This occurs three times.



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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.

7

A die is thrown. Find the probability of:

(i) Getting a prime number


(ii) Getting an odd number


(iii) Getting an odd-prime number

8

1500 families with 2 children were selected randomly, and the following data were recorded:


If a family is chosen at random, compute the probability that it has:


(i) No girl


(ii) 1 girl


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(iv) At most one girl


(v) More girls than boys.

Questions · 50
15. Probability
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