Home
Class 12
MATHS
A random variable X follows binomial pro...

A random variable X follows binomial probability distribution with probability P(X), with mean as 2, probability of success as p and probability of failure as q such that `p+q=1.` If `SigmaX^(2)P(X)=(28)/(5)`, then the probability of exactly 2 success is

A

`(3xx2^(14))/(5^(10))`

B

`(3^(2)xx2^(16))/(5^(9))`

C

`3xx((2)/(5))^(10)`

D

`45xx((2)/(5))^(9)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

A random variable 'X' has the following probability distribution : The values of k is

A random variable X has the following probability distribution : determine the value of a

In a probability distribution of a random variable X , the sum of probabilities is always

If a random variable X follows binomial distribution with mean 3 and variance 3/2, find P(Xlt=5)dot

For the following probability distribution. E(X^(2)) is equal to

For the following probability distribution : E(X^(2)) is equal to

IF the mean and the variance of a binomial distribution are 4 and 3 respectively , then the probability of six successes is

is the probability distribution of a random variable X. Find the variance of X.

is the probability distribution of a random variable X. Find the variance of X.

If there are n independent trials, p and q are the probability of success and failure respectively, then probability of exactly r success