1.A large firm has 85% of its service calls made by a contractor, and 10 of these calls result in customer complaints. The other 15% of the service calls are made by their own employees, and these calls have a 5% complaint rate. Find the:
a) Probabiltiy of receiving a complaint
b) Probability that the complaint was from a customer serviced by the contractor
2. A car rental agency has 19 compact cars and 12 intermediate-size cars. If four of the cars are randomly selected for a safety check, what is the probability of getting two of each kind?
3. The probabilities that a satellite launching rocket will explode during lift-off or have its guidance system fail in the flight are 0.0002 and 0.0005, respectively. Assuming independence find the probabilities that such a rocket will
a) not explode during lift-off;
b) explode during lift-off or have its guidance system fail in flight;
c) neither explode during lift-off nor have its guidance system fail in flight.
4. Suppose that the probability that Ahmad and Mohammad will succeed in assembling the computer are 56% and 71% respectively and that the probability that both will succeed is 39%. Then compute the probability that Mohammad will not succeed in assembling the computer given that Ahmad has not succeeded in assembling the compute
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more