The mode of the following data is 67. Find the missing frequency x.

Last updated at Oct. 27, 2020 by Teachoo
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Question 33 The mode of the following data is 67. Find the missing frequency x.Given Mode = 67 โด Modal class is 60 โ 70 Mode = l + (๐๐ โ๐๐)/(๐๐๐ โ ๐๐ โ ๐๐) ร h where l = lower limit of modal class h = class-interval f1 = frequency of the modal class f0 = frequency of the class before modal class f2 = frequency of the class after modal class Now, Mode = l + (๐๐ โ๐๐)/(๐๐๐ โ ๐๐ โ ๐๐) ร h 67 = 60 + (15 โ ๐ฅ)/(2(15) โ ๐ฅ โ 12) ร 10 67 โ 60 = (15 โ ๐ฅ)/(30 โ ๐ฅ โ 12) ร 10 7 = (15 โ ๐ฅ)/(18 โ ๐ฅ) ร 10 7(18 โ x) = (15 โ x) ร 10 126 โ 7x = 150 โ 10x 10x โ 7x = 150 โ 126 3x = 24 x = ๐๐/๐ = 8
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