Find the probability of getting 5 exa...

Find the probability of getting 5 exactly twice in 7 throws of a die.

Verified by Experts

The correct Answer is:

N/a

Here `n=7`
Probability of getting 5 is `p=1/6`
`:.q=1-1/6=5/6`
`P(X=2)=.^(7)C_(2).p^(2)q^(5)=21(1/6)^(2)(5/6)^(5)`
`=7/12(5/6)^(5)`

PROBABIILITY
NAGEEN PRAKASHAN ENGLISH|Exercise Miscellaneous Exercise|19 Videos
PROBABIILITY
NAGEEN PRAKASHAN ENGLISH|Exercise Exercise 13.4|17 Videos
MATRICES
NAGEEN PRAKASHAN ENGLISH|Exercise Miscellaneous Exerice|15 Videos
RELATIONS AND FUNCTIONS
NAGEEN PRAKASHAN ENGLISH|Exercise Miscellaneous Exercise|19 Videos

Similar Questions

Explore conceptually related problems

Find the probability of getting 5 at least once in there throws of a dice.

Find the probability of getting 5 at most 3 times in four throws of a dice.

Find the probability of getting 3 each time in three throws a dice.

Find the probability of getting at least one head in three throws of a coin.

Find the probability of throwing at most 2 sixes in 6 throws of a single die.

A coin is tossed twice. Find the probability of getting: exactly one tail

A coin is tossed twice. Find the probability of getting: exactly one head

Find the probability of getting a sum of 9 or 10 in a throw of two dice.

If a dice is thrown twice, then find the probability of getting 1 in the first throw only.