Consider the following data related to the discrete random variable X: x 7 82 49 P(x) 0.5 0.2 0.3 What is the variance of X ?

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Consider the following data related to the discrete random variable X:

 x   7    82   49 
 P(x)    0.5    0.2   0.3  

What is the variance of X ?

Round all intermediate numbers to 4 decimal places.
Round final answer to 2 decimal places

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