Last updated at Aug. 5, 2021 by Teachoo

Transcript

Example 8 The median of the following data is 525. Find the values of x and y, if the total frequency is 100. Since Median = 525 500 โ 600 is Median Class Now, Median = l + (๐/2 โ๐๐)/๐ ร h Where N = โโ๐๐ l = h = cf = f = Putting values in formula Median = l + (๐/2 โ๐๐)/๐ ร h 525 = 500 + (๐๐๐/๐ โ(๐๐ + ๐))/๐๐ ร 100 525 = 500 + (50 โ (36 + x)) ร 5 525 โ 500 = (50 โ 36 โ x) ร 5 25 = (14 โ x) ร 5 25 = 14(5) โ 5x 25 = 70 โ 5x 5x = 70 โ 25 5x = 45 x = 45/5 x = 9 Also, โโ๐๐ = 76 + x + y 100 = 76 + x + y 100 โ 76 = 9 + y 24 = 9 + y y = 24 โ 9 y = 15

Chapter 14 Class 10 Statistics (Term 2)

Serial order wise

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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.