Ex 14.1, 6 - Daily expenditure on food of 25 households - Ex 14.1

Ex 14.1, 6 - Chapter 14 Class 10 Statistics - Part 2
Ex 14.1, 6 - Chapter 14 Class 10 Statistics - Part 3

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

Transcript

Ex 14.1, 6 The table below shows the daily expenditure on food of 25 households in a locality. Find the mean daily expenditure on food by a suitable method. 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 = 225 = 150 โˆ’ 100 = 50 Also, โˆ‘โ–’๐’‡๐’Š = 25 โˆ‘โ–’๐’‡๐’Š๐’–๐’Š = โˆ’7 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… = 225 + 50 ร— (โˆ’7)/25 ๐‘ฅ ฬ… = 225 โˆ’ 14 ๐’™ ฬ… = 211 Thus, Mean Daily expenditure on food is Rs 211

About the Author

Davneet Singh's photo - Teacher, Engineer, Marketer
Davneet Singh
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.