Answers
The data in sorted format is
63, 63, 65, 65, 65, 65, 67, 67, 68, 68, 68, 69, 69, 69, 69, 70, 71, 72, 72, 73, 73, 73, 74, 74, 75, 75, 75, 84 (63, 63, 65, 65, 65, 65, 67, 67, 68, 68, 68, 69, 69, 69 ) is the first half and (69, 70, 71, 72, 72, 73, 73, 73, 74, 74, 75, 75, 75, 84) is the 2nd half of the sorted data . So 1st quartile = median of 1st half is = 67+67/2= 67 3rd quartile = median of 2nd half is= 73+73/2= 73 So IQR= Q3-Q1= 6. UPPER FENCE = Q3+1.50QR=73+9=82 LOWER FENCE= Q1-1.51QR=67-9=58 we know that if any value is abive upper fence or below lower fence , then that value is an outlier. So 84 is outlier here in the data
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