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The standard deviation is the average dispersion of the scores from the mean the results indicate that SD is 10 .4521 , thus the difference of the scores from the mean is within 10 .4521 , the scores of this group therefore tend to concentrate near the mean . Table 8 IQ Score Measures Value Mean 102 .3542 Median 103 .0000 Mode 95 .00 Std . Deviation 12 .55762 Variance 157 .694 Range 82 .00 The table presents the measures of central tendency and...