We have the following data set:
2,7,15,3,12,9,15,8,3,10
The range is the difference between the highest and lowest values in the set, to find the range, order the data set from least to greatest.
2,3,3,7,8,9,10,12,15,15
Then,

Mean is represented by the following expression:


Population variance formula looks like this:

Then, substituting:

For the standard deviation:
Answer:
So first, you have to isolate w. You can do this by getting rid of the 8/5.
This will get you to: w = 25
-9.5 + 6x > 42.1
> is the greater than symbol. So it has to be greater than 42.1
x = 8.6 (at least)
Answer:
6
Step-by-step explanation:
25-7=18 18/3= 6.
6x3= 18 18+7= 25
THE ANSWER IS 6
Answer:
26
Step-by-step explanation:
Multiple by 65 by 40% or 0.4 and you get 26 .