Question

the mean of five numbers is 27 if one number is excluded their mean is 25 find the excluded observation

Answer 1

Step-by-step explanation:

The mean of 5 numbers = 27 Hence sum of numbers = 5 × 27 = 135 Given one number is excluded. So mean of 4 numbers = 25 Sum of 4 numbers = 4 × 27 = 100 The excluded number = 135 – 100 = 35