Solve the problem.True or false - if false, explain why or modify the statement so that it becomes true: As the standard deviation of a data set increases, the width of the standard normal curve for the data set increases.
What will be an ideal response?
False. The independent variable in the standard normal curve , z, measures how far a data point lies from the mean in units of numbers of standard deviations. So, the standard normal distribution is always the same width regardless of the value of the standard deviation of the data.
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Simplify. Your answer should be in lowest terms.- 
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Decide whether the given functions are inverses.f = {(-9, 15), (6, 0), (0, 22), (15, -9)}g = {(15, -9), (0, 6), (22, 0), (-9, 15)}
A. No B. Yes
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log4(16x)
A. 2 log4 x B. 8 + log4 x C. 2x D. 2 + log4 x
Convert as indicated. Express the answer in decimal form when needed.420 feet per second to feet per minute
A. 13 ft/min B. 3 ft/min C. 7 ft/min D. 17 ft/min