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Math Chapter Wise question with answer

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Question #50,089
Math Chapter Wise Statistics And Probability English MCQ DSSSB PGT 2021

Q.The frequency distribution of the amount of rainfall in December in a certain region for a period of 30 years is given as __________ Rainfall (in inches) Number of years 2.0 - 4.0 3 4.0 - 6.0 6 6.0 - 8.0 8 8.0 - 10.0 8 10.9 - 12.0 5 The mean amount of rainfall in inches is -

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