Ap Statistics Lesson Sheet
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4AP Statistics Lesson 6.1B
Name: _______________
Chapter 1
Quantitative Variables
Variance: the "average" of the
squared differences from the
mean (the square of the stddev)
Standard Deviation of a QV:
typical distance between var value and
mean of distribution
Chapter 2
Normal Density Curves
Chapter 5
Random Variables
Variance: the "average" of the squared
deviation of the values of X from its
Expected Value (mean)
Formula on sheet.
Standard Deviation of RV:
If use calculator, you'll be required to
typical distance between
show some work for full credit.
RV values and their
Expected Value (mean)
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