The Probability That a Call Received by a Certain Switchboard

question 177

Multiple Choice

The probability that a call received by a certain switchboard will be a wrong number is 0.02.Use the Poisson approximation to the binomial distribution to find the probability that among 140 calls received by the switchboard,there are at least two wrong numbers.

• A)0.5305
• B)0.7616
• C)0.7689
• D)0.2384
• E)0.2311

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Definitions:

Justifies Act

A rationale or reason given for taking a specific action, often framed in moral, logical, or practical terms.

Compromise Mechanism

A psychological strategy where conflicting demands are met by finding a middle ground or mutual concession, thus reducing internal tension.

Rationalization

A defense mechanism where controversial behaviors or feelings are justified and explained in a seemingly rational or logical manner to avoid the true explanation.

Bogus Reasons

False, misleading, or unfounded reasons provided to justify a decision or action.