During a Meteor Shower, 'Shooting Stars' Occur at an Average

question 138

Multiple Choice

During a meteor shower, 'shooting stars' occur at an average rate of 12 per minute or .2 per second.Assume all the Poisson conditions are met.What is the probability of exactly three 'shooting stars' in a randomly selected half-minute?

• A).1346
• B).0502
• C).1654
• D).1997
• E).0892

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