Answer:
D. The distance from the mean to an inflection point
Step-by-step explanation:
We rarely encounter the actual formula for the normal PDF. It is ...

In fact, the inflection points are at x = ±1, where the curve changes from being concave downward to concave upward.
So, one standard deviation is the distance from the mean to an inflection point.
Answer:
5.1
Step-by-step explanation:
-44.288-31.6 / -3.1(6-1.2)
Add -44.288 and -31.6
= -75.888 / -3.1(6-1.2)
Subtract 1.2 from 6
= -75.888 / -3.1(4.8)
Multiply -3.1 and 4.8
= -75.888 / -14.88
Divide -75.888 by -14.88
-75.888 / -14.88
=5.1
Answer:
Step-by-step explanation:
Question 1: C
1 multiplied by 5 = 5
1 plus 5 = 6
So you get: (x+5)(x+1) which means x = -5 or -1
Question 2: B
2 multiplied by -4 = - 8
2 plus -4 = -2
So you get: (x-4)(x+2) which means x = 4 or -2
Answer:
Any coordinate point with (positive x, negative y)