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AP Statistics

AP Statistics . Chapter 5 Review. Question #1. r = 0.40 r = 0.90 r= 1.00 r = -0.10 r = -0.85. Question #2. r = 0.40 r = 0.90 r= 1.00 r = -0.10 r = -0.85. Question #3. r = 0.40 r = 0.90 r= 1.00 r = -0.10 r = -0.85. Question #4. r = 0.40 r = 0.90 r= 1.00 r = -0.10 r = -0.85.

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AP Statistics

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  1. AP Statistics Chapter 5 Review

  2. Question #1 • r = 0.40 • r = 0.90 • r= 1.00 • r = -0.10 • r = -0.85

  3. Question #2 • r = 0.40 • r = 0.90 • r= 1.00 • r = -0.10 • r = -0.85

  4. Question #3 • r = 0.40 • r = 0.90 • r= 1.00 • r = -0.10 • r = -0.85

  5. Question #4 • r = 0.40 • r = 0.90 • r= 1.00 • r = -0.10 • r = -0.85

  6. Question #5 • r = 0.40 • r = 0.90 • r= 1.00 • r = -0.10 • r = -0.85

  7. Question #6 Is the statement true or false? If false explain what is wrong with the statement. • The correlation between eye color and weight is very strong with r = 0.95. • If r = 1 then the scatterplot will consist of points that all lie on the same line. • If the correlation coefficient for x and y is very small then we may say that there is no cause and effect relationship between x and y.

  8. Question #7 Suppose the LSRL for hours of sleep the night before the ACT and score on the ACT is given by (Score) = 19.55 + 0.4558(Hours of sleep) If Joy had 7 hours of sleep the night before she took the ACT and her residual is 2, then her ACT score was ___________.

  9. Question #8 Which of the following would you expect to have r<0? • x = Height of student, y = weight of student • x = Temperature of the day, y= number of people wearing coats • x = time to swim 1 mile, y = time to swim 200 feet

  10. Question #9 Given the following values for x and y. The graph of the LSRL must pass through which point.

  11. Question #10 A statistician conducts a study on x = height and y = shoe size and find that the equation of the LSRL is (Shoe size) = -5.6 + (1/5)(height) and r = 0.85. If the roles of x and y are reversed and a new equation is calculated in the form (Height) = a + b(shoe size) what are the new values of b and r?

  12. Question #11 See Fathom…..

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