Math, asked by mancity1435, 4 months ago

The mean of 10 observations was calculated as 60. It was detected on rechecking that the value of 55 was wrongly copied as 25. Find the correct mean.

Answers

Answered by pranavrauthan
9

Answer:

The Mean is 63

Step-by-step explanation:

Solution :

The mean of 10 observations = 60

The sum of 10 observations = 60×10

= 600

If observation 55 was wrongly

copied as 25 then

correct observation = 55 - 25

= 30

Sum of correct observations = 600+30

= 630

Correct mean = 630/10

= 63

∵  

Correct mean = 63

Hope it helps you

Similar questions