According to a study of Western-built commercial jets involved in crashes over a 10-year period, the percentage of airplane crashes that occur at each stage of flight are as follows: Phase Percent On ground, taxiing 3 During takeoff 8 Climbing to cruise altitude 18 En route 5 Descent and approach 28 Landing 38 If one of the doomed flights in this period is picked at random, what is the probability that it crashed: (a) While taxiing on the ground or while en route? (b) During takeoff or landing?
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.
According to a study of Western-built commercial jets involved in crashes over a 10-year period, the percentage of airplane crashes that occur at each stage of flight are as follows:
| Phase | Percent |
|---|---|
| On ground, taxiing | 3 |
| During takeoff | 8 |
| Climbing to cruise altitude | 18 |
| En route | 5 |
| Descent and approach | 28 |
| Landing | 38 |
If one of the doomed flights in this period is picked at random, what is the probability that it crashed:
(b) During takeoff or landing?
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