Question

Consider a discrete random variable, q, that can take on the following values 1, 10, 100,...

Consider a discrete random variable, q, that can take on the following values 1, 10, 100, or 1000 with following probabilities.  

q

1

10

100

1000

P(q)

0.15

0.23

0.45

0.18
  1. Calculate the expected value of q

  1. Calculate the standard deviation of q
Math   Statistics-And-Probability   
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