Account
Register

Share

Books Shortlist

# Solution - Let the p. m. f. (probability mass function) of random variable x be p(x)=(4/x)(5/9)^x(4/9)^(4-x), x=0, 1, 2, 3, 4 =0 otherwise find E(x) and var (x) - Probability Distribution - Probability Mass Function (P.M.F.)

ConceptProbability Distribution Probability Mass Function (P.M.F.)

#### Question

Let the p. m. f. (probability mass function) of random variable x be

p(x)=(4/x)(5/9)^x(4/9)^(4-x), x=0, 1, 2, 3, 4

=0 otherwise

find E(x) and var (x)

#### Solution

You need to to view the solution
Is there an error in this question or solution?

#### Video TutorialsVIEW ALL [1]

Solution for question: Let the p. m. f. (probability mass function) of random variable x be p(x)=(4/x)(5/9)^x(4/9)^(4-x), x=0, 1, 2, 3, 4 =0 otherwise find E(x) and var (x) concept: Probability Distribution - Probability Mass Function (P.M.F.). For the courses HSC Arts, HSC Science (Computer Science), HSC Science (Electronics), HSC Science (General)
S