Question

The mean of 50 observations was 250. later it was found that the number 152 was wrongly copied as 102 for the computation of means. find the correct mean. PLS DEADLINE TOMORROW!!!!

Answer 1

Let The Total Sum of 50 Observations be x.

Now Given Mean of 50 observations=250.

Now Mean =sum of total Observations/ Total no: of observation's

→250=x/50
→x=250×50=12,500


So the sum Of observations=12500.

Now Given.152 was Wrongly Copied as 102.

So 50 must be added to 12500 to correct its Fault.

So The Correct sum =12550.


So The Correct Mean=12550/50=251.


So 251 is the answer you are looking for.

Hope it Helps...
Regards,
Leukonov.

Answer 2

Answer:

answer is

125

Step-by-step explanation:

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