Answer:
C
Step-by-step explanation:
both 4 and -4 are the same distance from 0
Answer:
sample variances
Step-by-step explanation:
The pooled variance method is used to estimate the variance of several different population with different means, but are assume to have the same variance.
The weights represent the sample variances.
So the correct answer is
sample variances
Answer:
m
Step-by-step explanation:
The variable is the letter.
John will spend time with about 8 kids all together, if you just subtract the amount of kids from each section. you will get it