Estimating the Number of Daily Flights from London to Dubai: A Guide for FAANG PM Interviews
Welcome to this dedicated post for aspiring product managers (PMs) looking to conquer the FAANG interview process. Interviews for PM roles often feature questions that assess a candidate’s analytical and problem-solving skills. A critical part of success lies in navigating these challenges with structured thought processes. Today we’re tackling an estimation question that those interviewing for PM roles at FAANG companies may encounter: “Estimate the number of daily flights from London to Dubai”.
Detailed Guide on Framework Application
a. Choosing the Right Framework:
For estimation questions, the logical framework to fall back on is the Fermi estimation technique, which involves breaking down a large, complex question into smaller, manageable parts.
b. Applying the Fermi Framework:
- Identify the Components: Break down the major factors contributing to the number of daily flights—number of airlines flying the route, average number of daily flights per airline, and airport capacity.
- Estimate Each Component: Make informed approximations for each factor based on general knowledge, industry standards, and logical deductions.
- Calculate the Final Estimate: Combine your estimates for each component to reach an overall estimate for the number of daily flights.
c. Hypothetical Example:
Let’s assume there are 5 major airlines that operate flights from London to Dubai. If on average, each airline has 3 flights per day, that would mean there are about 15 flights. Considering variations in airline schedules and that smaller airlines might also operate this route, you might increase this number to 20 to be conservative.
d. Fact Checks:
Although you may not know the exact number of daily flights, consider factors like the popularity of the route and the capacity of the airports. Heathrow and Dubai International are both busy hubs, suggesting a high frequency of flights.
e. Estimation Without Exact Data:
Use reference points that are grounded in common knowledge. For example, Heathrow is known as one of the busiest airports in the world, which can validate a relatively high estimate.
f. Communication Tips:
Clearly articulate your assumptions and the logic behind your estimates. Moreover, demonstrate openness to correction or additional information that could fine-tune your estimate.
Conclusion
Estimation questions like predicting the number of daily flights from London to Dubai are an excellent way to demonstrate your analytical abilities and problem-solving skills. Remember to apply frameworks like the Fermi technique, be clear and logical in your approach, and effectively communicate your thought process. Practice with these strategies to ace your FAANG interviews. Good luck!