efficiency rate of five employes shows:
97, 103,96, 99, 105
Then find mean efficiency rate using first three employes as a sample?
The mean efficiency rate of the five employees is:
(97 + 103 + 96 + 99 + 105) / 5 = 100
To find the mean efficiency rate using the first three employees as a sample, we add up their efficiency rates and divide by 3:
(97 + 103 + 96) / 3 = 98.67
Therefore, the mean efficiency rate using the first three employees as a sample is 98.67.