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The national average for the math portion of the College Boards SAT test is 515 (the World Almanac, 2009). The

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The national average for the math portion of the College Board’s SAT test is 515 (the World Almanac, 2009). The College Board periodically rescales the test scores such that the standard deviation is approximately 100. Answer the following questions using a bell-shaped distribution and the empirical rule for the math test scores.
a. What percentage of students have an SAT math score greater than 615?
b. What percentage of students have an SAT math score greater than 715?
c. What percentage of students have an SAT math score between 415 and 515?
d. What percentage of students have an SAT math score between 315 and 615? Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...

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a 615 is one standard deviation above the mean Approximately 68 of the scores are between 415 and 61…View the full answer


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Essentials Of Statistics For Business And Economics

Essentials Of Statistics For Business And Economics

ISBN: 9781305081598

7th Edition

Authors: David Anderson, Thomas Williams, Dennis Sweeney, Jeffrey Cam

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Question Posted: February 16, 2015 01:28:57
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