An ordinary dice is rolled for a certain number of times. If the probability of getting an odd number 2 times is equal to the probability of getting an even number 3 times, then the probability of get

Question

An ordinary dice is rolled for a certain number of times. If the probability of getting an odd number 2 times is equal to the probability of getting an even number 3 times, then the probability of getting an odd number for odd number of times is:

TestHub · Accepted Answer

C 2 n 1 2 n = C 3 n 1 2 n ⇒ C 2 n = C 3 n ⇒ n = 5 Probability of getting an odd number for odd number of times is C 1 5 1 2 5 + C 3 5 1 2 5 + C 5 5 1 2 5 = 1 2 5 5 + 10 + 1 = 1 2

Mathematics - Probability Question with Solution | TestHub

Options:

Doubts & Discussion