Question

A coin is tossed thrice. What is the probability of getting two consecutive tails?

Answer 1

Sample space = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}

n(S) = 8

Let A be the event of getting consecutive tails

A = {HTT, TTH, TTT}

n(A) = 3

P(A) = `("n"("A"))/("n"("S")) = 3/8`