Question

A coin is three time tossed. Find the probability of the following events:

(A) getting at least two heads. (B) Getting exactly two heads.​

Answer 1

Answer:

a) 1/3 b) 1/3

Step-by-step explanation:

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Answer 2

Answer:

1/2,3/8

Step-by-step explanation:

Coin tossed three times, so total possibilities = 2*2*2 = 8

Cases where you get atleast two heads:

HHT

HTH

THH

HHH

SO 4 CASES

Probability = 4/8 = 1/2

To get exactly two heads, there'll be 3 cases, HHT,HTH,THH

So probability = 3/8