Question

Four coins are tossed, find the probability of getting at least 2 Tails

Answer 1

Answer:

the probablity iS 0.2

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Answer 2

Answer:

1/2

Explanation:

chances are HHHH, HHHT, HHTH, HTHH, THHH, TTTT, TTTH, TTHTT, THTT, HTTT

Now as we know atleast means minimum to maximum i.e it can be increased but can't decrease

Thus, no of chances= 10

favourable chance= TTTT ,TTTH ,THTT, HTTT ,TTHT= 5

hence, probability = 5/10

= 1/2

Hope it is helpful !!