The discrete probability distribution is given by   0 1 2 3   0 k 2k 3k   Show that k =1/6                                                                                                      Find the mean of the probability distribution.                                                                iii. Find the variance of the probability distribution.

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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The discrete probability distribution is given by

 

0

1

2

3

 

0

k

2k

3k

 

  1. Show that =1/6                                                                                                     
  2. Find the mean of the probability distribution.                                                           

    iii. Find the variance of the probability distribution.                                                      

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