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Calculate the arithmetic mean for the following data: Class 10−20, 20-30, 30-40, 40-50; Frequencies 5, 10, 15, 10.
30.0
32.5
31.5
35.0
31.5
Practice and solve "Calculate the arithmetic mean for the following data: Class 10−20, 20-30, 30-40, 40-50; Frequencies..." for RRB JE CBT-1 - Quantitative Aptitude · The correct answer is Option C: 31.5 · Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "Calculate the arithmetic mean for the following data: Class 10−20, 20-30, 30-40, 40-50; Frequencies..." for RRB JE CBT-1 - Quantitative Aptitude · The correct answer is Option C: 31.5 · Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.