Math, asked by abhishek347, 1 year ago

mean of 100 observation is 40 it is found that an observation 53 was misread as 83 find the correct mean

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Answered by Anonymous

6

a +b+ c :.... 99 observation + 83 = 4000

a+b+c +... 99th observation + 53 = 4000 - 30 = 3970

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