Suppose 10 coins are tossed. Find the probability of getting
i) exactly 2 heads
ii) at most 2 heads
iii) at least 2 heads
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Suppose 10 coins are tossed. Find the probability of getting
i) exactly 2 heads
ii) at most 2 heads
iii) at least 2 heads
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Answer:
Step-by-step explanation:
no of outcomes=20
(I)No. of favourable outcomes=2
P(getting exactly 2 heads)=2\20=1\10
(iii)No. of favourable outcomes=17
P( getting at most 2 heads)=17\20
(ii) No. of favourable outcomes=5
P(getting at least 2 heads)=5\20=1\4