Suppose that X can only take on one of the 4 possible values from the probability distribution given below.  What is the variance of X? (use a decimal number, rounded to the nearest 10th, without $ sign. For example, 1.2)

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Suppose that X can only take on one of the 4 possible values from the probability distribution given below. 

What is the variance of X?
(use a decimal number, rounded to the nearest 10th, without $ sign. For example, 1.2)
 
 
X
1
3
5
9
P[X = x]
0.2
0.3
0.4
р
Transcribed Image Text:X 1 3 5 9 P[X = x] 0.2 0.3 0.4 р
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