1. 
According to T-100
Domestic Market, the top seven airlines in the United States by domestic
boarding in a recent year were Southwest Airlines with 81.1 million, Delta
Airlines with 79.4 million, American Airlines with 72.6 million, United
Airlines with 56.3 million, Northwest Airlines with 43.3 million, US Airways
with 37.8 million, and Continental Airlines with 31.5 million. Construct a pie
chart to depict this information.
2. A
data set contains the following seven values.
6 2 4 9 1 3 5
a. Find the range
i. Range = Highest – Lowest = 9 – 1 = 8
b. Find the mean absolute deviation
i.
MAD = ∑ | x – µ | / N
|
x |
|
(x- µ) |
|
abs(x- µ) |
|
6 |
|
1.71 |
|
1.71 |
|
2 |
|
-2.29 |
|
2.29 |
|
4 |
|
-0.29 |
|
0.29 |
|
9 |
|
4.71 |
|
4.71 |
|
1 |
|
-3.29 |
|
3.29 |
|
3 |
|
-1.29 |
|
1.29 |
|
5 |
|
0.71 |
|
0.71 |
|
30 |
|
|
|
|
|
mu=4.29 |
|
|
MAD |
2.040816 |
