Chapter 13 Class 10 Statistics

Serial order wise

Last updated at April 16, 2024 by Teachoo

Ex 13.1, 5 In a retail market, fruit vendors were selling mangoes kept in packing boxes. These boxes contained varying number of mangoes. The following was the distribution of mangoes according to the number of boxes. Find the mean number of mangoes kept in a packing box. Which method of finding the mean did you choose? Since there is a gap of 1 between intervals We add Β½ to upper limit, and subtract Β½ to lower limit Now, letβs find mean Mean(π₯ Μ ) = a + h Γ (ββππππ)/(ββππ) Where a = Assumed mean h = Class interval Also, ββππ = 400 ββππππ = 25 Putting values in formula Mean(π Μ ) = a + h Γ (ββππππ)/(ββππ) π₯ Μ = 57 + 3 Γ 25/400 π₯ Μ = 57 + 0.1875 π₯ Μ = 57.1875 π Μ = 57.19 Thus, Mean number of boxes is 57.19 We chose this method because calculation was easier