Solve the problem.The annual rainfall in Maine is a random variable with probability density function defined by 
for x in 
Find the variance.
A. 2.550
B. 1.601
C. 1.643
D. 0.815
Answer: B
Mathematics
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Use the data set {0, -1, -3, 3, 3, -5, -7, 10} to answer the following question(s).The mode of the data set is
A. -0.5. B. -3.5. C. 3. D. 0. E. none of these
Mathematics
Add or subtract. Simplify the answer.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem using matrices.Melody has $45,000 to invest and wishes to receive an annual income of $4290 from this money. She has chosen investments that pay 5%, 8%, and 12% simple interest. Melody wants to have the amount invested at 12% to be double the amount invested at 8%. How much should she invest at each rate?
What will be an ideal response?
Mathematics
The graph of a function h is given.
 figure 1.png)
Mathematics