Answer:
He will be unable to tell whether a difference in exercise preference is related to a difference in age or to a difference in weight
Step-by-step explanation:
age could be a factor to exercise as well as weight so both affect the outcome so he has two samples
Answer:
Step-by-step explanation:
It would be c cause it is possible to land on yellow
7, if it was plus. but the question says suntraction.
I think the answer is 18.
Equation/ steps:
12+v=30
30-12= 18
V=18
Hope this helps!
No because the 7's in both problems are in the same place.
