Question

If e[x] = 1 and var(x) = 5, find

Answer 1

The standard deviation of the random variable x is 2.236.

Step-by-step explanation:

To find the standard deviation, we need to take the square root of the variance. Given that var(x) = 5, we know that the standard deviation σ(x) = √5 = 2.236.

So, the standard deviation of the random variable x is 2.236.