Question

The following are the heights in cm of a random sample of 20 boys.
Estimate the standard deviation of the heights in the whole population
85.4, 80.7. 85.5, 81.9. 86.3

Select the single best answer:
A. SD = 2.5
B, SD = 2 2
OC. SD = 2.4​

Answer 1

Answer:

Step-by-step explanation:

I do not understand

Answer 2

Answer:

2.2

Step-by-step explanation:

take the mean, variance, square of the that number