- Shown in the following table are the reported annual deaths of males aged 75 or over from 1 of the 5 leading types of cancer:

For a randomly selected deceased male cancer victim, what is the probability that

- he died of 1 of the 2 primary causes?

- He died of cancer of either the stomach or the pancreas?

- He did not die of lung cancer?

- Out of every 100 cars that start in the Maryland Grand Prix race, only 60 finish. Two cars are entered by the UMUC team in this year’s race.

- What is the probability that both will finish?

- What is the probability that neither of UMUC’s 2 cars will finish the grand prix?

- A review of the records at Lander Community College revealed the following ethnic breakdown of the student population:

Caucasian1200

Black 640

Hispanic 280

Asian 80

Native American 60

Other 20

- What is the probability that a randomly selected student is either

Caucasian or Black?

- What is the probability that the selected student is not a member of either

of the two largest categories?

- The area under the standard normal distribution between -1.5 and 1.5 is
- 0.1338
- 0.1668
- 0.4332
- None of the above

- The lengths of time bank customers must wait for a teller are normally distributed, with a mean of 3 minutes and a standard deviation of 1 minute.
- What proportion of bank customers waits between 3 and 4.5 minutes

- What percentage wait more than 4 minutes?

- What proportion waits between 2 and 3.5 minutes?

- What percentage wait less than 1 minute?

- To estimate the medical charges for an appendectomy Blue Star Insurance has data from a random sample of 70 patients. The sample mean cost is $510, with a sample standard deviation of $70.
- Construct a 95% confidence interval for the population mean cost.

We are 95% confident that the populations mean costs of patients’ medical charges for an appendectomy through Blue Star Insurance range is between ??? and ???

Subject | Mathematics |

Due By (Pacific Time) | 04/26/2015 12:00 pm |

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