ProbabilityHard
Question
There is a three volume dictionary among 40 books arranged on a shelf in random order. The probability of these volumes standing in increasing order from left to right (the volumes are not necessarily kept side by side) is:
Options
A.1/3
B.1/6
C.1/9
D.none
Solution
n(S) = 40!
n(E) = 40!/3!
P =
Aliter n(S) = 40!
n(E) = 40C3 . 1 . 37!
n(E) = 40!/3!
P =
Aliter n(S) = 40!
n(E) = 40C3 . 1 . 37!
Create a free account to view solution
View Solution FreeMore Probability Questions
A card is drawn from a pack of playing cards. It is replaced in the pack and the pack is shuffled, and again a card is d...A piece of equipment will function only when all the three components A, B and C are working. the probability of A faili...A pair of dice is thrown. If total of numbers turned up on both the dice is 8, then the probability that the number turn...A draws two cards with replacement from a well shuffled pack of cards and at the same time B throws a pair of dice. The ...A bag contains 6 black and 5 white balls, while the second bag contains 7 black and 4 white balls. Two balls are drawn o...