Based on the following calculator output, determine the inter-quartile range of the dataset. 1-Var-Stats xˉ=64.4285714286Σx=451Σx2=29415Sx=7.72133716522σx=7.14856914468n=7minX=54Q1=57Med2=66Q3=73maxX=74Answer:
Q. Based on the following calculator output, determine the inter-quartile range of the dataset. 1-Var-Stats xˉ=64.4285714286Σx=451Σx2=29415Sx=7.72133716522σx=7.14856914468n=7minX=54Q1=57Med2=66Q3=73maxX=74Answer:
Identify Quartiles: Identify the first quartile ( extit{Q1}) and the third quartile ( extit{Q3}) from the calculator output.From the output, we have extit{Q1} = 57 and extit{Q3} = 73.
Calculate IQR: Calculate the inter-quartile range (IQR). The inter-quartile range is the difference between the third quartile and the first quartile. IQR=Q3−Q1=73−57=16.
Verify Calculation: Verify the calculation.Re-check the subtraction to ensure there are no arithmetic errors.73−57 indeed equals 16.
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