The Probability That a Call Received by a Certain Switchboard

question 30

Multiple Choice

The probability that a call received by a certain switchboard will be a wrong number is 0.02. Use the Poisson distribution to approximate the probability that among 150 calls received by the switchboard, there are at least two wrong numbers. Round your answer to four
Decimal places.

• A) 0.8009
• B) 0.7760
• C) 0.2240
• D) 0.1991
• E) 0.5768

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Definitions:

Long-Term Memory

The phase of memory responsible for storing information over extended periods, ranging from hours to a lifetime.

Unlimited Capacity

The theoretical idea that an entity or system has no boundaries or limits in terms of capacity or volume.

Flashbulb Memory

A clear memory of an emotionally significant moment or event.

Grandfather's Death

An event signifying the passing away of one's grandfather, often having emotional and familial importance.