Find the mean and standard deviation of the specified probability density function.f(x) = 0.2e-0.2x for [0, ?)
A. ? = 6, ? = 6
B. ? = 0.5, ? = 0.6
C. ? = 5, ? = 5
D. ? = 0.5, ? = 0.5
Answer: C
Mathematics
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A. y = 
x + 
B. y = - 
x + 
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D. y = 2x + 9
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A. {-11, 11}
B. {-
, 
}
C. {22}
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