# Question: Find 2 and 2 for the random variable X

Find µ, µ'2, and σ2 for the random variable X that has the probability density

## Relevant Questions

Find µ'r and σ2 for the random variable X that has the probability density Show that For r = 1,2,3,..., and use this formula to express µ3 and µ4 in terms of moments about the origin. Find the moment- generating function of the continuous random variable X whose probability density is given by And use it to find µ'1, µ'2, and σ2. With reference to Exercise 3.42 on page 90, find the covariance of X and Y. With reference to Exercise 3.71 on page 100, find the conditional expectation of the random variable U = Z2 given X = 1 and Y = 2.Post your question