Solve the problem.The standard deviation of a normal distribution is ? = 30. What is the interquartile range for this distribution?
A. 20.25
B. 40.5
C. 10.125
D. 60
E. none of these
Answer: B
Mathematics
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Write the slope-intercept form of the equation for the line passing through the given pair of points.
and 
A. y = 
x - 
B. y = 
x + 
C. y = 3x + 11
D. y = 
x
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Write a positive or negative fraction to describe the situation.Roger cut the plywood board 
in. too short to fit the opening.
A. - 1
B. - 
C. 
D. 
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Express the repeating decimal as a fraction in lowest terms.0. 
= 
+ 
+ 
+ ...
A. 
B. 
C. 
D. 
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Decide whether the limit exists. If it exists, find its value.Find 
f(x).
A. 0 B. -? C. 2 D. -2
Mathematics