Question

The average height of 12 students is 152cm .On the verification it was found that one reading was wrongly recorded as 148cm instead of 172 cm . Find the correct mean height

Answer 1

Answer:

The correct mean height is 154 cm

Step-by-step explanation:

As we have given in the question that average height of 12 students = 152 cm

And on the verification, it came to know that the height of 1 student is Incorrectly entered, It is entered as 148 cm instead of 172 cm

Therefore, there is a difference of 24 cm in the total height of 1 student

So if we would divide the 24 into 12 students it came to be 2 cm

Therefore the mean height should be 2 cm more than the given mean height

Therefore the final answer must be 154 cm