use the following table to answer questions (a) and (b). (a) Find the expected value (mean) of
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Question:
use the following table to answer questions (a) and (b).
(a) Find the expected value (mean) of X.
(b) Find the standard deviation of X.
X P (x)
0 0.25
1 0.50
2 0.15
3 0.10
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