Question

mean of100 items is 37. At the time of circulation it was found that one item 90 was wrongly taken as 60. find correct mean.​

Answer 1

Answer:

In case 1,

Mean = 37

37 = x/100

x = 3700

In case 2,

Mean = 3700 - 60 + 90/ 100

= 3730/100

= 37.3

So, the new mean is 37.3

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Answer 2

Answer:

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