Question

The mean of 200 items was 50 letter on it was discovered that the two items were miss read as 92 and 8 instead of 192 and 88 find the correct mean

Answer 1

Answer:50.9

Step-by-step explanation:Mean =50

Items=200 and sum=200×50=10000

192 misread as 92 then Difference =192-92=100

88 misread as 8 then Difference = 88-8=80

Then 100+80=180

Now, 10000+180=10180

So, correct sum=10180 then correct mean =10180÷200= 50.9

Thankyou