A fair coin is tossed in the air ten times. What is the probability that it will land heads exactly one time? Give your answer as a fraction in reduced form.
A) 5/512
B) 1/2
C) 1023/1024
D) 1/10
E) None of the above.

Question

Quizplus · Accepted Answer

The probability of getting heads on a single toss is 1/2. The probability of getting tails on a single toss is also 1/2. The probability of getting heads exactly one time in ten tosses is (1/2)^1 * (1/2)^9 * 10 = 5/512.

A Fair Coin Is Tossed in the Air Ten Times