Find the mean, variance, and standard deviation for the numbers 3, 7, 2, and 4.
What will be an ideal response?
Mean 
, variance 
,
Standard deviation 
Mathematics
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Use the substitution formula to evaluate the integral.
A. - 
B. 
C. 
D. - 
Mathematics
Graph.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics
Match to the equivalent expression.
A. y7/8
B. y
C. 
D. y1/2
Mathematics
Write the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the expression.
A. - 
B. 
C. -
D. 
Mathematics