95% fall within 2 standard deviations of the mean
Answer:

Step-by-step explanation:
the general equation of a circle is

with (h,k) being the centre of the circle and r the radius
Answer:
see below
Step-by-step explanation:
75% of what number is 150
75 150
----- = ---------
100 x
75*2 = 150
So multiply the left by 2/2
75*2 150
----- = ---------
100*2 x
150
------
200
Im pretty sure the answer is 3/12 why? Because your selection is 12 because there are 12 months in a year the way you get three is because of march July and November...hoped this helped