Home
Class 12
MATHS
A pair of die is rolled six times. Find ...

A pair of die is rolled six times. Find the probability that a third sum of seven is obtained at the sixth throw.

Text Solution

Verified by Experts

`5C_2*(1/6)^2*(5/6)^3*1/3`
`(5!)/((2!*3!))*1/36*(5/6)^3*1/6`
`5*4/2*1/36*(5/6)^3*1/6`
`5^4/(6^5*3)`.
Promotional Banner

Similar Questions

Explore conceptually related problems

A die is rolled three times. The probability that the sum of three numbers obtained is 15, is equal to

A die is rolled three times. The probability that the sum of three numbers obtained is 15, is equal to

A die is rolled three times. The probability that the sum of three numbers obtained is 15, is equal to

A die is rolled three times. The probability that the sum of three numbers obtained is 15, is equal to

A die is rolled three times. Find the probability that the numbers obtained are in strictly increasing order.

A fair die is tossed eight times . The probability that a thrid six is oberved on the 8th throw is :

A die is thrown again and again until three sixes are obtained. Find the probability of obtaining the third six in the sixth throw of the die.