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Ex 13.3, 2 - Chapter 13 Class 10 Statistics

Last updated at May 29, 2023 by

Ex 14.3, 2 - If median is 28.5, find values of x and y. - Ex 14.3

Ex 14.3, 2 - Chapter 14 Class 10 Statistics - Part 2
Ex 14.3, 2 - Chapter 14 Class 10 Statistics - Part 3 Ex 14.3, 2 - Chapter 14 Class 10 Statistics - Part 4

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Ex 13.3, 2 If the median of the distribution given below is 28.5, find the values of x and y. Now, Median = l + (𝑡/𝟐 βˆ’π’„π’‡)/𝒇 Γ— h Since Median = 28.5 20 – 30 is Median Class Where N = βˆ‘β–’π‘“π‘– l = h = cf = f = Putting values in formula Median = l + (𝑛/2 βˆ’π‘π‘“)/𝑓 Γ— h 28.5 = 20 + (30 βˆ’ (5+ π‘₯))/20 Γ— 10 28.5 = 20 + (25 βˆ’ π‘₯)/2 28.5 – 20 = (25 βˆ’ π‘₯)/2 8.5 = (25 βˆ’π‘₯)/2 8.5 Γ— 2 = 25 – x 17 = 25 – x x = 25 – 17 x = 8 Also, βˆ‘β–’π’‡π’Š = 45 + x + y Putting values 60 = 45 + 8 + y 60 = 53 + y 60 – 53 = y 7 = y y = 7 Hence, x = 8, y = 7

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