Home
Class 12
MATHS
If variance of variable is 50 then x=...


If variance of variable is 50 then x=

A

5

B

6

C

4

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

If variance of variables a ,2a ,2a ,3a ,3a ,3a ,dot,10 a is 54 then value of ' a ' can be 3 (b) -3 (c) 9 (d) 6

Which of the following is variance of random variable x=x_(i) and P(x=x_(i))=p_(i)

The mean and variance of a random variable X having a binomial distribution are 4 and 2 respectively. The P(X=1) is

The mean and variance of a random variable X having binomial distribution are 4 and 2 respectively. Then P(x gt 6)=

The mean and variance of a random variable X having a binomial probability distribution are 6 and 3 respectively, then the probabiltiy P(X ge 2) is

If coefficient of correlation is -0.6, standard deviation of x is 5 and variance of y is 16, then what is the co-variance of x and y?

The correlation coefficient between x and y is 0.6. If the variance of x is 225, th variance of y is 400, mean of x is 10 and mean of y is 20, find the equation of two regression lines.

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 X is a random variable with the following probability distribution then the variance of X is