Exam 5: A Survey of Probability Concepts

Each salesperson in a large department store chain is rated on their sales ability and their potential for advancement. The data for the 500 sampled salespeople are summarized in the following table. What is the probability that a salesperson selected at random will have an excellent potential for advancement given they also have average sales ability?

A study of interior designers' opinions with respect to the most desirable primary color for executive offices showed that: What is the probability that a designer does not prefer red?

If there are five vacant parking places and five automobiles arrive at the same time, in how many different ways they can park? _____

Probabilities are important information when

Each salesperson in a large department store chain is rated on their sales ability and their potential for advancement. The data for the 500 sampled salespeople are summarized in the following table. What is the probability that a salesperson selected at random has above average sales ability and is an excellent potential for advancement?

What type of diagram is useful when applying Bayes' Theorem? _______________

The first card selected from a standard 52-card deck was a king. If it is NOT returned to the deck, what is the probability that a king will be drawn on the second selection?

When are two events mutually exclusive?

A cell phone salesperson has kept records on the customers who visited the store. 40% of the customers who visited the store were female. Furthermore, the data show that 35% of the females who visited his store purchased a cell phone, while 20% of the males who visited his store purchased a cell phone. Let represent the event that a customer is a female, represent the event that a customer is a male, and B represent the event that a customer will purchase a phone. What is the probability that a female customer will purchase a cell phone? ______________

Each salesperson in a large department store chain is rated on their sales ability and their potential for advancement. The data for the 500 sampled salespeople are summarized in the following table. What is the probability that a salesperson selected at random will have an excellent potential for advancement given they also have above average sales ability?

A company set up a kiosk in the Mall of America for several hours and asked randomly selected people which color cell phone was their favorite. The results follow: What is the probability that a person would select orange or lime as their favorite color?

A graphical method used to calculate joint and conditional probabilities is

The probability of rolling a 3 or 2 on a single die is an example of mutually exclusive events.

A company set up a kiosk in the Mall of America for several hours and asked randomly selected people which color cell phone cover was their favorite. The results follow: What is the probability of randomly selecting a person who likes white cell phones the best?

In a study of student preference of energy drinks, the researcher has identified a population of 10 students. To get a quick result, the researcher will select a sample of 2 students. How many different samples are possible?

A cell phone salesperson has kept records on the customers who visited the store. 40% of the customers who visited the store were female. Furthermore, the data show that 35% of the females who visited his store purchased a cell phone, while 20% of the males who visited his store purchased a cell phone. Let represent the event that a customer is a female, represent the event that a customer is a male, and B represent the event that a customer will purchase a phone. What is the probability that a male customer will purchase a cell phone? ______________

In a management trainee program, 80 percent of the trainees are female, 20 percent male. Ninety percent of the females attended college, 78 percent of the males attended college. A management trainee is selected at random. What is the probability that the person selected is a male who did NOT attend college?

An automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that some packages were underweight and some were overweight, but most of them had satisfactory weight. What is the probability of selecting three packages that are overweight?

In a survey of employee satisfaction, 60% of the employees are male and 45% of the employees are satisfied. What is the probability of randomly selecting an employee who is male and satisfied?

What is a particular result of an experiment called? __________