Question 885: Global Airlines Operates Two Types Of O

Question 885question 885global Airlines Operates Two Types Of Je

Global Airlines operates two types of jet planes: jumbo and ordinary. On jumbo jets, 25% of the passengers are on business, while on ordinary jets 30% of the passengers are on business. Of Global's air fleet, 40% of its capacity is provided on jumbo jets. (Hint: You have been given two conditional probabilities.)

a. What is the probability a randomly chosen business customer flying with Global is on a jumbo jet?

b. What is the probability a randomly chosen non-business customer flying with Global is on an ordinary jet?

Paper For Above instruction

The problem presents a scenario involving two types of aircraft operated by Global Airlines—jumbo and ordinary jets—and their respective proportions of business and non-business passengers. To analyze the probabilities involved, it is essential to interpret the given data carefully and employ conditional probability principles, particularly Bayes' theorem, to find the required likelihoods.

Firstly, the provided information states that:

  • 25% of passengers on jumbo jets are business travelers, implying P(Business | Jumbo) = 0.25.
  • 30% of passengers on ordinary jets are business travelers, thus P(Business | Ordinary) = 0.30.
  • 40% of the airline's capacity is allocated to jumbo jets, so P(Jumbo) = 0.40, and consequently, P(Ordinary) = 0.60.

Our objective is to find:

  1. The probability that a randomly chosen business traveler is on a jumbo jet, i.e., P(Jumbo | Business).
  2. The probability that a randomly chosen non-business traveler is on an ordinary jet, i.e., P(Ordinary | Non-Business).

To compute these, we first determine the overall probabilities of a passenger being on a jumbo or ordinary jet, irrespective of their business status. Using the law of total probability:

  • P(Jumbo) = 0.40
  • P(Ordinary) = 0.60

Given the conditional probabilities, we can calculate the overall probability that a passenger is a business traveler:

P(Business) = P(Business | Jumbo) P(Jumbo) + P(Business | Ordinary) P(Ordinary) = (0.25)(0.40) + (0.30)(0.60) = 0.10 + 0.18 = 0.28.

Similarly, the probability that a passenger is a non-business traveler is:

P(Non-Business) = 1 - P(Business) = 1 - 0.28 = 0.72.

Using Bayes' theorem, the probability that a business traveler is on a jumbo jet is:

P(Jumbo | Business) = [P(Business | Jumbo) P(Jumbo)] / P(Business) = (0.25 0.40) / 0.28 = 0.10 / 0.28 ≈ 0.3571.

For the second part, the probability that a non-business traveler is on an ordinary jet is:

P(Ordinary | Non-Business) = [P(Non-Business | Ordinary) * P(Ordinary)] / P(Non-Business). Considering that P(Non-Business | Ordinary) = 1 - P(Business | Ordinary) = 0.70:

P(Non-Business | Ordinary) P(Ordinary) = 0.70 0.60 = 0.42.

Hence, P(Ordinary | Non-Business) = 0.42 / 0.72 ≈ 0.5833.

In conclusion, about 35.7% of business travelers are on jumbo jets, and approximately 58.33% of non-business travelers are on ordinary jets. These calculations provide insights into passenger distribution based on travel purpose and aircraft type, aiding airlines in understanding customer segmentation and optimizing capacity deployment.

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