South Africa Airways would like to monitor its airline’s performance. Each week for the past 20 weeks, they checked each week a random sample of 100 flight arrivals for “one-time” performance. The table that follows contains the number of flights that did not meet South Africa Airways definition of “one time”: Week Late flights 1 2 2 4 3 10 4 4 5 1 6 1 7 13 8 9 9 11 10 0 11 3 12 4 13 2 14 2 15 8 16 2 17 3 18 7 19 3 20 2 Draw the chart and interpret it.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
South Africa Airways would like to monitor its airline’s performance. Each week for the past 20 weeks, they checked each week a random sample of 100 flight arrivals for “one-time” performance. The table that follows contains the number of flights that did not meet South Africa Airways definition of “one time”:
|
Week |
Late flights |
|
1 |
2 |
|
2 |
4 |
|
3 |
10 |
|
4 |
4 |
|
5 |
1 |
|
6 |
1 |
|
7 |
13 |
|
8 |
9 |
|
9 |
11 |
|
10 |
0 |
|
11 |
3 |
|
12 |
4 |
|
13 |
2 |
|
14 |
2 |
|
15 |
8 |
|
16 |
2 |
|
17 |
3 |
|
18 |
7 |
|
19 |
3 |
|
20 |
2 |
- Draw the chart and interpret it.
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