Mean variance and standard deviation: A random variable X has the following probability distributions a. Find the
Question:
a. Find the mean of X.
b. Find the variance of X.
c. Find the standard deviation of X.
Transcribed Image Text:
r 6 78 9 10 11 Ρα)|0.21 0.12 0.29 0.11 0.01 0.26
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