Probability

Question

A fair (unbiased) coin was tosssed four times in succession and resulted in the following outcomes:

i)Head ,   ii) Head,  iii) Head   iv)Head. The probability of obtaining a "Tail" when a coin is tossed again is

A) 0

B) 1/2

C) 4/5

D) 1/5

Answer 1

It's $1/2$. These are Bernoulli's trials.