Tony speaks truth only 3 out of 7 times He was asked to narrate an incident of which he - Maths - Probability

Question

Tony speaks truth only 3 out of 7 times He was asked to narrate an
incident of which he was the only witness What is the probability
that he will lie in narrating it

Manbar Singh · Accepted Answer

We haveprobability of speaking truth = 37Hence required probability = 1 - probability of speaking truth = 1 - 37 = 47

Tony speaks truth only 3 out of 7 times. He was asked to narrate an incident of which he was the only witness. What is the probability that he will lie in narrating it.