The discrete probability distribution is given by x 0 1 2 3 p ( X = x) 0 k 2k 3k i. Show that k = 1/6  ii. Find the mean of the probability distribution.  iii. Find the variance of the probability distribution.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 9E
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The discrete probability distribution is given by

x 0 1 2 3
p ( X = x) 0 k 2k 3k


i. Show that k = 1/6 
ii. Find the mean of the probability distribution. 
iii. Find the variance of the probability distribution.

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can be this be handwritten? the formulas are a bit unclear 

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