The probability density function of X is f (x) = 
over [0, 5] . Compute each of the following.
(a) E ( X )
(b) SD(X )
Mathematics
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Sketch the graph of the given equation. Begin by sketching the traces in the coordinate planes.x2 + y2 + z2 = 4
What will be an ideal response?
Mathematics
Set up an integral for the length of the curve.x = 8 tan y, 0 ? y ? 
A. 
B. 
C. 
D. 
Mathematics
Multiply.-5(-6)
A. 300 B. 25 C. 20 D. 30
Mathematics
Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics