Course

ConceptProbability Distribution - Expected Value, Variance and Standard Deviation of a Discrete Random Variable

#### My Profile

My Profile [view full profile]

why create a profile on shaalaa.com?

1. Inform you about time table of exam.

2. Inform you about new question papers.

3. New video tutorials information.

1. Inform you about time table of exam.

2. Inform you about new question papers.

3. New video tutorials information.

#### Question

Find the expected value, variance and standard deviation of random variable X whose probability mass function (p.m.f.) is given below:

X=x | 1 | 2 | 3 |

P(X=x) | 1/5 | 2/5 | 2/5 |

clickto share

#### Solution

You need to to view the solution

Is there an error in this question or solution?

#### Appears in these question papers

Solution for concept: Probability Distribution - Expected Value, Variance and Standard Deviation of a Discrete Random Variable. For the courses HSC Arts, HSC Science (Computer Science), HSC Science (Electronics), HSC Science (General)