Question

what is the probability of getting exact 2 heads when tossing the coin thrice
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Answer 1

$\huge{\mathfrak{\blue{Answer}}}$

1/2 is the probability of getting exact 2 heads when tossing the coin thrice

Answer 2

The probability of at least 2 heads in a row on three flips is the sum of the probabilities of the following three cases: HHT, THH and HHH.

Now, each case has the probability of

(1/2)^3 so,

P=3 * (1/2)^3= 3/8

Answer =3
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8