A coin biased 10 35 heads and 65 tails The coin is tossed tw

A coin biased 10 35% heads and 65% tails. The coin is tossed twice. What is the probability that the coin turns up heads once and tails once? Select one: A. 22.75% B. 35% C. 65% D. 45.5%

Solution

Probability of both heads is: (0.35)^2 , probability of both tails is: (0.65)^2

Total probability is 1

Hence probability that coin turns up head once and tail once is: 1-0.35^2-.65^2=0.455 or 45.5%