can someone help me solve this Flip a coin three times and o

Flip a coin three times and observe the outcome. Write out the sample space. What is the probability you observe exactly two heads?

Solution

12.

S = {HHH, THH, HTH, HHT, HTT, THT, TTH, TTT} [ANSWER]

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13.

There are 3 results with 2 heads, THH, HTH, HHT.

As there are 8 outcomes,

P = 2 heads) = 3/8 or 0.375 [ANSWER]