Advertisements
Advertisements
प्रश्न
Choose the correct alternative:
Which of the following is not possible in probability distribution?
विकल्प
`sum"p"(x) ≥ 0`
`sum"p"(x) = 1`
`sumx"p"(x) = 2`
`"p"(x) = -0.5`
Advertisements
उत्तर
`"p"(x) = -0.5`
APPEARS IN
संबंधित प्रश्न
For the random variable X with the given probability mass function as below, find the mean and variance.
`f(x) = {{:(2(x - 1), 1 < x ≤ 2),(0, "otherwise"):}`
If µ and σ2 are the mean and variance of the discrete random variable X and E(X + 3) = 10 and E(X + 3)2 = 116, find µ and σ2
The probability density function of the random variable X is given by
`f(x) = {{:(16x"e"^(-4x), x > 0),(0, x ≤ 0):}`
find the mean and variance of X
In investment, a man can make a profit of ₹ 5,000 with a probability of 0.62 or a loss of ₹ 8,000 with a probability of 0.38. Find the expected gain
How do you defi ne variance in terms of Mathematical expectation?
State the definition of Mathematical expectation using continuous random variable
Choose the correct alternative:
Probability which explains x is equal to or less than a particular value is classified as
Choose the correct alternative:
An expected value of a random variable is equal to it’s
Choose the correct alternative:
The distribution function F(x) is equal to
Prove that V(aX) = a2V(X)
