A survey of high school seniors from a certain school district who took the SAT has determined that the mean score on the mathematics portion was 450 with a standard deviation of 11.5. By a normal probability density function the data can be modeled as 
. Find the derivative of the model.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: B
Mathematics
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Solve the problem.An insurance company will insure a $220,000 home for its total value for an annual premium of $540. If the company spends $30 per year to service such a policy, the probability of total loss for such a home in a given year is 0.001 and you assume either total loss or no loss will occur, what is the company's expected annual gain (or profit) on each such policy?
A. $320 B. $290 C. -$220 D. $240
Mathematics
Evaluate the exponential expression.
4
A. 1
B. 
C. 51
D. 
Mathematics
Make a line graph of the data.
A. 
B. 
C. 
D. 
Mathematics
Give the x-intercepts and y-intercepts of the graph.
A. y-intercept: 1 B. y-intercept: -1 C. x-intercept: 1 D. x-intercept: -1
Mathematics