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Sahay Sir > Question Answers > NCERT Class 9 > Maths > Chapter 14 - Statistics > 12. If the mean of the observations : x, x + 3, x + 5, x + 7, x + 10 is 9, the mean of the last three observations is

12. If the mean of the observations : x, x + 3, x + 5, x + 7, x + 10 is 9, the mean of the last three observations is

July 3, 2021
Category: Chapter 14 - Statistics , Chapter 15 - Probability , Maths , NCERT Class 9 ,

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