By Abdul Quader Miah (auth.)
This publication addresses the appliance of statistical recommendations and techniques throughout quite a lot of disciplines. whereas its major concentration is at the software of statistical equipment, theoretical points also are supplied as primary history info. It bargains a scientific interpretation of effects usually stumbled on normally descriptions of equipment and strategies resembling linear and non-linear regression. SPSS can be utilized in the entire software elements. The presentation of information within the type of tables and graphs through the publication not just courses clients, but in addition explains the statistical software and assists readers in examining vital good points. The research of statistical info is gifted continually during the textual content. educational researchers, practitioners and different clients who paintings with statistical facts will take advantage of examining Applied facts for Social and administration Sciences.
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Extra info for Applied Statistics for Social and Management Sciences
Pﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃ ðVarianceÞ vﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃ #ﬃ u" P 2 u À Xg fX i ¼t n sﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃ P 2 Xi 2 ÀX ¼ n Standard deviation S ¼ For frequency distribution ﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃ v" #ﬃ u P 2 u À Xg f fX i Standard deviation S ¼ t n sﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃﬃ P 2 f Xi 2 ÀX ¼ n where Xi = ith observation or midpoint of the ith class. 10. Calculate the mean deviation, variance, and the standard deviation. 12). Calculate the mean, variance, and standard deviation of owner and renter expenditures.
Although measures of central tendency are quite useful, a measure of central tendency, by itself, is not sufﬁcient to provide an adequate summary of the characteristics of a dataset. For example, consider the following three sets of observations in income: 44 3 Descriptive Statistics xð$Þ yð$Þ zð$Þ 14; 000 4000 2000 17; 000 12; 000 10; 000 20; 000 20; 000 30; 000 23; 000 26; 000 28; 000 36; 000 38; 000 The mean of the income in all the three distributions is $20,000. But the distributions are not the same.
It is the absolute difference between the maximum value and the minimum value of the dataset. In the income example cited above, the range of x income set is $26,000 − 14,000 = $12,000 and range of the z income set is $38,000 − 2000 = $36,000. 2 Interquartile Range (IQR) IQR is the difference between the third quartile and the ﬁrst quartile. A general rule is necessary to set out for locating the ﬁrst, second, and third quartiles in a set of data. , the median is (n + 1)/2 and the location of the third quartile is 3(n + 1)/4.