Question

A) A fair coins is tossed 5 times. what is the probability tat it lands on heads exactly once?round you answer to two decimal places

Answer 1

The possible outcomes are; HTTTT or THTTT or TTHTT or TTTHT or TTTTH

Prob(H) = 1/2 and Prob(T) = 1/2

Prob(exactly one head) = 5 x Prob(HTTTT)

`=5*((1)/(2))^5=(5)/(2^5)=(5)/(32)=0.15625\approx0.16`