Answer:
Variance population of 147,141,120,124,128 = 106
Variance sample of 147,141,120,124,128 = 132.5
Hope this helps and PLSSS MARK AS BRAINLIEST :)
Answer:
See below.
Step-by-step explanation:
The mean = (120+124+128+141+147) / 5
= 660 / 5
= 132
Difference between the values and the mean = -12, -8, -4, 9, 15.
Squares of these differences = 144, 64, 16, 81, 225
Sum of these squared differences = 530
So the variance = 530 / 5
= 106.
This is the population variance.
The sample variance = 530 / (5-1)
= 132.5.
