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Ex 14.1, 9 Class 10 - Table gives literacy rate of 35 cities. Find

Ex 14.1, 9 - Chapter 14 Class 10 Statistics - Part 2
Ex 14.1, 9 - Chapter 14 Class 10 Statistics - Part 3

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Ex 14.1, 9 The following table gives the literacy rate (in percentage) of 35 cities. Find the mean literacy rate. Mean(π‘₯ Μ…) = a + h Γ— (βˆ‘β–’π’‡π’Šπ’–π’Š)/(βˆ‘β–’π’‡π’Š) Where a = Assumed mean h = Class interval = 70 = 55 – 45 = 10 Also, βˆ‘β–’π’‡π’Š = 35 βˆ‘β–’π’‡π’Šπ’–π’Š = βˆ’2 Putting values in formula Mean(𝒙 Μ…) = a + h Γ— (βˆ‘β–’π’‡π’Šπ’–π’Š)/(βˆ‘β–’π’‡π’Š) π‘₯ Μ… = 70 + 10 Γ— (βˆ’2)/35 π‘₯ Μ… = 70 βˆ’ 0.57 𝒙 Μ… = 69.43 Thus, Mean Literacy Rate is 69.43%

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