Answer:
A is the inverse function,
Step-by-step explanation:
Answer: 0.0336
Step-by-step explanation:
Given : The distribution of cholesterol levels in teenage boys is approximately normal with mean :
Standard deviation : 
The formula for z-score is given by :-

For x=225

The p-value =

The probability that a teenage boy has a cholesterol level greater than 225 =0.0336
Answer:

Step-by-step explanation:
5x4+20x3-105x2
5x2( x^2 +4x -21)

Answer:
a graphical representation of the distribution of income or of wealth.
1/3 2/6
7 divided by 21=3
12 divided by 72= 6