Answer:
The following are the answer to this question:
Step-by-step explanation:
In the question some data is missing, which is defined in the attached file please find it.
The table for point a:
plot for the Stem-and-leaf:
0 3 4 5 7 4
1 2 2 4 4 5 7 7 7
2 0 3 4 4 5 8 6
3 3 4 7 9 4
4 1
In point b:
Its distributed skewed is correct because in its points 1 is a tail on its right side.
please find the attached file.
Answer:
The answer is


Step-by-step explanation:
we know that


In this problem we have


so
The angle
belong to the third or fourth quadrant
The value of
is negative
Step 1
Find the value of 
Remember

we have

substitute



------> remember that the value is negative
Step 2
Find the value of 

we have


substitute


Answer:
$24.09
Step-by-step explanation:
you do 984.20-381.80=602.4
then divide 602.4 by 1/4
which 1/4=25.
then you get $24.09
Except (D)
because it's 25N not 0.25N