Table 1: Descriptive Statistics IQ Age N Valid 13 13 Missing 1 1 Mean 107.8462 32.6923 Median 106.0000 31.0000 Mode 91.00a 29.00a Std. Deviation 14.01693 11.76424 Variance 196.474 138.397 Range 49.00 45.00 Minimum 91.00 16.00 Maximum 140.00 61.00 a. Multiple modes exist. The smallest value is shown Using the IQ scores for the sample, table 1 was created in order to get an overview of the data. 1 Find ??X ??x = x-??2N-1 = 91-107.852, 96-107.852, 140-107.852, 98-107.852, ??¦., 115-107.85213-1 = 2,357.69312= 196.4744 ??x for IQ = 14.01693 2 What is the median? 91, 94, 96, 98, 99, 103, 106, 107, 108, 115, 119, 126, 140 Median for IQ is 106 3 What is the mode? IQ has multiple modes, but the smallest value of these modes is 91. 4 What is the mean? ??=x1, x2, x3, ??¦, XxN = 91,96,140,??¦, 11513 = 140213 = 107.8462 Average IQ for this sample is 107.85. 5 What is N? N for this sample is 13. 6 What is the range? Is it significant? Range for IQ is 49. 7 Display the range in equation form. Range = xmax ??“ xmin Range for IQ = 140 ??“ 91 8 Create a frequency distribution; from that, chart a frequency polygon Figure 1: Frequency Polygon for IQ 9. Find the variance ??2= x-??2N-1 = 91-107.8462…