The probability density function of X is f (x) = 4x3 / 625 over [0, 5] . Compute each of the following.
(a) E ( X )
(b) SD(X )
(a) 4
(b) 
Mathematics
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Find the phase shift or vertical shift as requested.Find the vertical shift of y = 2 - 2sin 
A. 2
B. 
C. - 2
D. - 
Mathematics
Solve the problem.While shopping for a party, June bought 
of hamburger, 
of chicken, and 
of ham. How much meat did she buy?
A. 
lb
B. 2
lb
C. 7
lb
D. 
lb
Mathematics
Solve the problem.A bag contains 9 red marbles, 3 blue marbles, and 7 green marbles. If one marble is selected at random, determine the probability that it is blue.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
- 
= 
A. n = - 
B. n = 1
C. n = 
D. n = 
Mathematics