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Thursday, September 29, 2016

Thursday and Weekend HW!

Tonight, answer the following questions...this will help us to drive the z-score formula in class tomorrow!

The SAT's are designed to have a mean of (roughly) 500 for one section of the test, with a standard deviation of 100.

a.) Consider an SAT score of 610 on one section. How many standard deviations above the mean is a score of 610?
  • Do some math! Your final answer should be a number!
b.) Now, consider an SAT score of 390 on one section. How many standard deviations below the mean is a score of 390?
  • Do some math! Your final answer should be a number!
c.) Examine the math you did to answer questions (a) and (b). Your challenge is to consider your work in (a) and (b) and translate your ideas into a generic formula.
  • Let "x" represent a data value (or the given SAT score, like 610 or 390).
  • Let "x-bar" represent the mean
  • Let "Sx" represent the standard deviation.
  • Write an equation using these three variables to find "the number of standard deviations above or below the mean." 
Weekend HW:

This weekend you have a chapter 5 take home quiz! This is a major quiz grade, so take your time and work diligently! This is like 3 vocab quizzes combined so be sure to use your notes and get an A!

The quiz is uploaded under our classroom resources link if you lost your copy!



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