Question

A coin is tossed 6 times. what is the probability of getting at least one head? express your answer as a fraction or a decimal number rounded to four decimal places.

Answer 1

The possible combinations of at least getting one head is the same as subtracting the probability of getting ALL tails from the total probability of one
P(TTTTTT) = 0.5 × 0.5 × 0.5 × 0.5 × 0.5 × 0.5 = 0.015625
1 - P(TTTTTT) = 1 - 0.0156251 - P(TTTTTT) = 0.984375
So, probability of getting at least one head is 0.984375