The Probability That a Particular Brand of Smoke Alarm Will

question 30

Multiple Choice

The probability that a particular brand of smoke alarm will function properly and sound an alarm in the presence of smoke is 0.8. A batch of 100,000 such alarms was produced by independent production lines. Which of the following distributions would you use to figure out the probability that at least 90,000 of them will function properly in case of a fire?

• A) Exponential distribution
• B) Poisson distribution
• C) Normal distribution
• D) Uniform distribution

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