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Unformatted text preview: when there are 25 cops in the park. a) True b) False 9. Which of the following is true about standardized values? a) s = 1 b) 1 = z c) s = 0 d) 1 < < z 10. Which of the following is not a resistant statistic? a) mean b) median c) mode d) IQR 11. True or False? The sample median will always be a number that was observed in the data set. a) True b) False 12. True or False? The following distribution is skewed right. 33 mode 32 ~ 28 = = = x x a) True b) False 13. What is the IQR? 41 24 20 15 10 4 3 2 1 = = = = = Q Q Q Q Q a) 21 b) 9 c) 4 d) 26 14. True or False? If r is positive, then a in our regression equation must also be positive. a) True b) False 15. True or False? b from the regression equation will always be between 1 and +1 ) 1 1 ( ≤ ≤b . a) True b) False 16. What is the standardized value for 10? 582 . 2 , 667 . 6 , 11 ~ , 667 . 11 2 = = = = s s x x a) .646 b).646 c).387 d) .250...
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 Fall '07
 MELutz
 Statistics, Standard Deviation, Mean, 50 Minutes, data set.

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