Practice Problems

Ch.2 and Ch.3 Practice Problems Chapter 2: 11. For the following courses, gamble the (a) mean, (b) median, (c) pump of pattern disagreements, (d) edition, and (e) modular aberration:2, 2, 0, 5, 1, 4, 1, 3, 0, 0, 1, 4, 4, 0, 1, 4, 3, 4, 2, 1, 0 X| (X = X)^2| 0| 4| 0| 4| 0| 4| 0| 4| 0| 4| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 0| 2| 0| 2| 0| 3| 1| 3| 1| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 9| 42| 56| a.)Mean: 42/21=2 b.)Median: 2 c.) bosom of upstanding bendings: 52 d.) Variance-2.47 e.) Standard Deviation- 1.57 To take the tell of straightforwardly up deviation subtract the mean from separately sucker which will give you each scores deviation score whence square each of these scores. Add up the squared deviation scores and you have the sum of squared deviation scores. single out the sum of the squared deviation scores by the rate of scores and you will have the variance. The square sink of the variance is the hackneyed deviation. 12. For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard deviation: 1,112; 1,245; 1,361; 1,372; 1,472 a.) Mean: 1312 b.) Median: 1361 c.

) sum of squared deviations: 76090 x| m| diff| squared| 1112| 1312| -200| 40000| 1245| 1312| -67| 4489| 1361| 1312| 49| 2401| 1372| 1312| 60| 3600| 1472| 1312| one coke sixty| 25600| | | | 76090| d.) Variance: 19022 E.) Standard Deviation: 137.92 13. For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) stan dard deviation: 3.0, 3.4, 2.6, 3.3, 3.5, 3.2! a.) mean: 3.16667 b.) median: 3.25 c.) sum of squared deviations = ? d.) variance = (0.32660)^2 = 0.10667 e.) standard deviation = 0.32660 16. A psychologist interested in political behavior metric the square footage of the desks in the official office of quaternion U.S. governors and of four psyche executive officers (CEOs) of...If you want to get a unspoiled essay, value it on our website: OrderCustomPaper.com

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