Question

The average height of 10 students in a class was calculated as 166 cm. On
verification it was found that one reading was wrongly recorded as 160 cm, instead of
150 cm. Find the correct mean height​

Answer 1

Answer:

165

Step-by-step explanation:

The average height of 10 students = 166

The total height of 10 students = 166×10 = 1660

the figure with value 160 will be corrected to value 150

so, The total corrected height of 10 students = 1660 - 160 + 150 = 1650

now, the correct average height of 10 students = 1650/10 = 165