الشعبة Question: A contractor want to select a steel bars (diameter 16 mm) produced from two factories (A and B). The data below shows the results of tensile test; determine: Factory (B) Factory (A)...

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Extracted text: الشعبة Question: A contractor want to select a steel bars (diameter 16 mm) produced from two factories (A and B). The data below shows the results of tensile test; determine: Factory (B) Factory (A) Frequency (f.) 1. The mean and median. 2. Standard deviation and variance. 3. Find the percent of steel (325.5<><425.5). 4.="" select="" the="" better="" line.="" 5.="" draw="" polygon="" and="" ascending="" ogive.="" classes="" classes="" frequency="" (f.)="" 275.5-300.5="" 1="" 275.5-300.5="" 1="" 300.5-325.5="" 2="" 300.5-325.5="" 1="" 325.5-350.5="" 4="" 325.5-350.5="" 1="" 350.5-375.5="" 6.="" 350.5-375.5="" 7="" 375.5-400.5="" 7="" 375.5-400.5="" 13="" 400.5-425.5="" 6.="" 400.5-425.5="" 425.5-450.5="" 4.="" 425.5-450.5="" 1="" 450.5-475.5="" 2="" 450.5-475.5="" 1="" 475.5-500.5="" 1="" 475.5-500.5="">