The Number of Customers Who Enter a Bank Is Thought

question 146

Multiple Choice

The number of customers who enter a bank is thought to be Poisson distributed with a mean equal to 10 per hour. What are the chances that no customers will arrive in a 15-minute period?

• A) Approximately zero
• B) 0.0067
• C) 0.0821
• D) 0.0250

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