Answer:


The relative variability is almost equal in both samples a slight greater variability can be noticed in the first sample.
Step-by-step explanation:
The coefficient of variation of a sample is defined as the ratio between the mean standard deviation and the sample mean. And it represents the percentage relation of the variation of the data with respect to the average.

In the case of the first sample you have:

In the case of the second sample you have:

The relative variability is almost equal in both samples a slight greater variability can be noticed in the first sample.
I guess it's A -4 sorry if it's wrong answer
One is the amount you have, also its the numerator
-4,-3,-2,-1,0
which means 4 numbers
Answer:
-ad-r=C
-------- Sorry thats the best I could do for a fraction symbol
3-b
Step-by-step explanation:
In order to solve for C we need to get it C on one side of the equation all by itself. To start we can subtract R from both sides and subtract bc from both sides to get both C's on one side. That gets us to
-ad-r=3c-bc
Since the side with C has a common factor, C between 3c and bc we can pull that out, and we get
-ad-r=c(3-b)
and then we just divide 3-b on both sides to get C completely by itself
-ad-r=C
--------
3-b
I hope this helps and please don't hesitate to ask if there is anything still unclear!