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in Probability by (47.8k points)
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Two unbiased coins are tossed simultaneously find the probability of getting 

(i) two heads

(ii) one head 

(iii) at least one head 

(iv) at most one head.

1 Answer

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by (47.4k points)
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Best answer

S = {HH, HT, TH, TT} 

(i) probability of two heads = \(\frac{1}{4}\)

(ii) probability of one head = \(\frac{1}{2}\)

(iii) probability of at least one head = \(\frac{3}{4}\)

(iv) probability of at most one head = \(\frac{3}{4}\)

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