AIEEE Exam

A letter is taken out at random from "ASSISTANT" and another is taken out from "STATISTICS". The probability that they are the same letters is

Read Solution (Total 1)

ASSISTANT - AA SSS I TT N
STATISTICS - A SSS II TTT C

probability of getting A from ASSISTANT and STATISTICS - 2/9 * 1/10 = 2/90
probability of getting S from ASSISTANT and STATISTICS - 3/9 * 3/10 = 9/90
probability of getting I from ASSISTANT and STATISTICS - 1/9 * 2/10 = 2/90
probability of getting T from ASSISTANT and STATISTICS - 2/9 * 3/10 = 6/90

TOTAL probability = 19/90
8 years agoHelpfull: Yes(9) No(0)

AIEEE Other Question

If P(A) = 3/4 , P(B) = 2/5, P(A - B) = 1/ 4
then
P(A + B) = ? If A, B, C are three mutually exclusive and exhaustive events of a trial
such that P(A) = 2P(B) = 3P(C) then P(A) IS