Question

The probability is 0.6 that an “unfair” coin will turnup tails on any given toss. If the coin is tossed 3 times, what is the probabilitythat at least one of the tosses will turn up tails?

Answer 1

probability of getting a tail =0.6

probability of getting a head=0.4

coin tossed 3 times

probability of atleast one tail=1-0.4×0.4×0.4=0.936