Answer:
A
Step-by-step explanation:
Each standard deviation from the mean covers 34.1 %
2 x 34.1 = 68.2% or .682
Answer:yes
Step-by-step explanation:
Answer:
instead of the 4, you can put the 80 and do the 20x4?
Step-by-step explanation:
i dont know if you can do that for whatever ur doing, just a suggestion
I lost my train of thought, but i was thinking of something like that