Introduction to Statistics (102 – 103 )

Q1- Consider the probability distribution shown here. X is a discrete random variable.

Xi

3

6

9

P(xi)

.2

 

.4

  1. a) Find p(x=6).

  1. b) Calculate µ.

  2. d) p(x=9)

p(x<6)

  p(x≤5)

Q2- If x is a binomial random variable, compute p(x) for the following

case: n= 6, p = .5 Find the following probabilities:

  1. a) p(x=4)

 b) p(x<3)

DETAILED ASSIGNMENT

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