The sample space, S, for flipping a fair coin three times is shown
below.
S = {HHH, THH, HTH, HHT, TTH, THT, HTT, TTT)
What is the probability of obtaining heads at least once?
1) 3/8. 2) 7/8. 3) 1/8. 4) 1/2

Step-by-step explanation:

Given

Sample space is

There are 8 element in sample space which indicates the outcome of tossing a coin three times

Probability of obtaining at least one head

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