1. A certain airplane has 2 independent alternators to provide electrical power. The probability that a given alternator will fail on a 1 hour flight is 0.02 . Please show work so that I can understand for future problems.
Probability: a) both will fail?
b) neither will fail?
c) one or the other will fail?

2. Probability is 1 in 4,000,000 that a single auto trip will result in a fatality. over a lifetime an average driver takes 50,000 trips.
a) What is probability of fatal accident over a lifetime? (independent events)
b) Why might the assumption of independence be violated?
c) Why might a driver be tempted Not to use a seat belt "just for this trip?

Solution Preview

1. A certain airplane has 2 independent alternators to provide electrical power. The probability that a given alternator will fail on a 1 hour flight is 0.02 . Please show work so that I can understand for future problems.

Probability: a) both will fail?

We know that the probability that one will fail is 0.02. The two alternators are independent of one another. The probability that both will fail is found by multiplying the individual probabilities together:

(0.02)(0.02) = ...

Solution Summary

The probability that a single auto trip will result in a fatality is determined. The solution computes the probability that a given alternator will fail.

... are dependent c is correct answer: this is ... of binomial distribution d. the probabilities of the ... e. all are characteristics of a binomial probability experiment. ...

... The Normal distribution can be used to approximate Binomial probabilities when n is ... The probability that x< 150 is: 0.1069 0.2276 0.1056 0.3944. Answer: 0.1056. ...

...Probability that more than 6 customers arrive in a ten minute interval= 0.0172 =1-0.9828. Answers Multiple Choice questions on Probability Distributions. ...

... Bell-shaped. Equal probabilities at all values of x 1 points Question 30 1. Which of the following probability distributions would most likely ...Answer. ...

... A statement that matches the values of a random variable with the probabilities of those values ... da probability distribution. Answer: da probability distribution ...

...Answer: Reduce sampling error. Question 2 Multiple Choice Sampling in which every unit of the population has the same probability of being selected into the ...

... see attached file. Answers to 8 Multiple choice questions on probability. EXHIBIT 4: The student body of a large university consists of 60% female students. ...

...Answer the question using the table. Probabilities of Girls. 24). Find the probability of selecting exactly 8 girls. 24). _____ A). 0.122. B). 0.022. C). 0.183. ...