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7. Since computation of the standard deviation requires addition, division, and other mathematical operations, it should be used for: a. interval-ratio level variables b. non-continuous variables at any level of measurement c. nominal level variables d. discrete variables only

7. Since computation of the standard deviation requires addition, division, and other mathematical operations, it should be used for: a. interval-ratio level variables b. non-continuous variables at any level of measurement c. nominal level variables d. discrete variables only

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Plllease answer alll. thaanks

7. Since computation of the standard deviation requires addition, division, and other mathematical operations, it should be used for: a. interval-ratio level variables b. non-continuous variables at any level of measurement c. nominal level variables d. discrete variables only 8. The median cannot be found for variables measured at the nominal level because: a. there is no central tendency. b. the scores cannot be ranked or ordered. c. all of the cases are representatives d. the distribution is skewed. 9. Four students have applied to a special program and only one can be accepted. They have taken a battery of 12 tests and all have exactly the same score. The standard deviation of their test scores are: Student A = 3.12, Student B = 0.27, Student C = 13.45, Student D = 6.45. If consistency of performance is a criterion of acceptance, which of the four students should be selected? а. А b. В с. С d. D 10. The term squared deviation in the calculation of standard deviation is based on: a. squaring the differences between the scores and the mean (X – X). b. ignoring the signs of the differences between the scores and the mean (X – X). c. subtracting each score from the median d. subtracting each score from the mode
Transcribed Image Text:7. Since computation of the standard deviation requires addition, division, and other mathematical operations, it should be used for: a. interval-ratio level variables b. non-continuous variables at any level of measurement c. nominal level variables d. discrete variables only 8. The median cannot be found for variables measured at the nominal level because: a. there is no central tendency. b. the scores cannot be ranked or ordered. c. all of the cases are representatives d. the distribution is skewed. 9. Four students have applied to a special program and only one can be accepted. They have taken a battery of 12 tests and all have exactly the same score. The standard deviation of their test scores are: Student A = 3.12, Student B = 0.27, Student C = 13.45, Student D = 6.45. If consistency of performance is a criterion of acceptance, which of the four students should be selected? а. А b. В с. С d. D 10. The term squared deviation in the calculation of standard deviation is based on: a. squaring the differences between the scores and the mean (X – X). b. ignoring the signs of the differences between the scores and the mean (X – X). c. subtracting each score from the median d. subtracting each score from the mode
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