compute the range, the variance, and the standard again in the lues ginal deviation. New scores: 0, 0, 12, 12 c. According to the range, how do the two distribu- tions compare in variability? How do...

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Extracted text: compute the range, the variance, and the standard again in the lues ginal deviation. New scores: 0, 0, 12, 12 c. According to the range, how do the two distribu- tions compare in variability? How do they compare according to the variance and standard deviation? 23. For the data in the following sample: 1, 1, 9, 1 a. Find the SS, variance, and standard deviation. b. Now change the score of X = 9 to X 3, and find the new values for SS, variance, and standard deviation. c. Describe how one extreme score influences the 3, the levia- ean mean and standard deviation. 24. Arden and Plomin (2006) published a study report- ing that IQ scores for boys are more variable than 1Q scores for girls. A researcher would like to know if this same phenomenon applies to other measures of cognitive ability. A standard cognitive skills test is 2iven to a sample of n and act r the ng 15 adolescent boys and a 1adolescent girls, and resulted in the