Question

13.3
6.
What is the value of 100th item?
[Ans. X 100 = 15
The mean of 99 items is 55. The value of 100th item is 99 more than the mean of 100 items​

Answer 1

Answer:

Mean = (Total value of observations)/(Number of observations)

 Total= 99×55

         =5445

Now,  mean of 100 items be x

By condition,

(99×55 + x)/100 = x

5445 + 99x = 100x

x=5445

The value of 100th item is  5445+99=5544

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