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

  1. Chapter 14 Class 10 Statistics
  2. Serial order wise

Transcript

Ex 14.1, 9 The following table gives the literacy rate (in percentage) of 35 cities. Find the mean literacy rate. Mean(๐‘ฅ ฬ…) = a + h ร— (โˆ‘โ–’๐’‡๐’Š๐’–๐’Š)/(โˆ‘โ–’๐’‡๐’Š) Where a = Assumed mean h = Class interval = 70 = 55 โ€“ 45 = 10 Also, โˆ‘โ–’๐’‡๐’Š = 35 โˆ‘โ–’๐’‡๐’Š๐’–๐’Š = โˆ’2 Putting values in formula Mean(๐’™ ฬ…) = a + h ร— (โˆ‘โ–’๐’‡๐’Š๐’–๐’Š)/(โˆ‘โ–’๐’‡๐’Š) ๐‘ฅ ฬ… = 70 + 10 ร— (โˆ’2)/35 ๐‘ฅ ฬ… = 70 โˆ’ 0.57 ๐’™ ฬ… = 69.43 Thus, Mean Literacy Rate is 69.43%

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.