Answer:
$7,429 I think (it has to be 20 characters ignore this part)
The last one. And I did answer for you too.
Answer:
19 ads
Step-by-step explanation:
just divide 1824 by 96
Answer:


Step-by-step explanation:
For this case we have the following data given:
2.3 3.1 2.8
1.7 0.9 4.0
2.1 1.2 3.6
0.2 2.4 3.2
Since the data are assumedn normally distributed we can find the standard deviation with the following formula:

And we need to find the mean first with the following formula:

And replacing we got:

And then we can calculate the deviation and we got:
