Question

suppose that x is a discrete random variable with probability mass function given by p(1)= 0.1, p(2)= 0.3, p(3)= 0.3, p(4)= 0.2, and p(5)= 0.1

a) plot p(x) for all x in the range.

b) compute numerically and plot the cumulative distribution function f(x)

Answer 1

@karatechopper

Answer 2

c) compute p(1.4 ≤ X ≤ 4.2)

d) Compute P( 1.4 < X < 4.2)

e) Compute the expected value E(X)

f) Compute the variance Var (X)

g) Compute the standard deviation of X

Answer 3

@rishavraj

Answer 4

@Nnesha