Answer:

Step-by-step explanation:

The mean is 35/5=7
The variance is the average of the sum of squared differences of each element from the mean:
v=((7-7)^2+(5-7)^2+(11-7)^2+(1-7)^2+(11-7)^2)/5
v=(0+4+16+36+16)/5
v=14.4
subtract them
593.7-573.36 = 20.34seconds
so c is the answer
What the composite function in the question is actually trying to explain is;
First of all, in the function
, we will find a result by writing
where we see the letter
.
We will write this result in the
function where we see the letter
and we will get the result.