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First Lets Clear Basic Concepts Mean = Sum of total Obs/No.Of Obs If N is Even Median = N/2 th obs + (N/2) + 1 th obs If N is Odd Median = (N + 1)/2 obs

Mean(x) = 10+20+30+40+50/5 X = 150/5 X = 30

So Arrayed Data = 34,32,30,29,19,15,11 [Note:We Have To Set Values In Ascending Order Or Descending Order.Since It Is Already In Descending Order There Is No Need Of Any Changes]

N=7 So, Median = (N+1) /2 th obs Median = (7+1) / 2 th obs Median = 8/2 th obs Median = 4th obs[i.e 29(check the Arrayed Data)] Therefore, Median = 29 And Mean = 30

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Mean = sum of observation / no. of .observation = 10+20+30+40+50 / 5 = 150 / 5 = 30 median = 34 , 32 , x=30, x-1 = 29, 19, 15, 11 in ascending order Nos. are :- 11, 15, 19, 29, 30, 32, 34 (easiest method ) the middle no. is 29 so, the median = 29

using formula method ( N+1) / 2 th ino. ie (7+1) / 2 = 4 th no. 4th no is 29 So, the median = 29