Exam 5: A Survey of Probability Concepts

Which approach to probability assumes that the events are equally likely?

The probability of rolling a 3 or 2 on a single die is an example of conditional probability.

What does equal?

Draw a Venn diagram showing the probability for two mutually exclusive events and also draw a Venn diagram showing the probability for two events that are not mutually exclusive. Explain the difference in the two diagrams.

You are assigned to design color codes for different parts. Three colors are used to code on each part. Once a combination of three colors is used-such as green, yellow, and red-these three colors cannot be rearranged to use as a code for another part. If there are 35 combinations, how many colors are available?

A survey of top executives revealed that 35% of them regularly read Time magazine, 20% read Newsweek, and 40% read U.S. News & World Report. A total of 10% read both Time and U.S. News & World Report. What is the probability that a particular top executive reads either Time or U.S. News & World Report regularly?

When the order of a set of objects selected from a single group is important, this is called ________.

A joint probability measures the likelihood that two or more events will happen concurrently.

A study of 200 computer service firms revealed these incomes after taxes: What is the probability that a particular firm selected has $1 million or more in income after taxes?

In a deck of 52 cards, what is the probability of selecting two kings from the deck without replacement?

A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified as follows: What is the probability that the first person selected is either in management or in supervision?

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?

A collection of one or more possible outcomes of an experiment is called a(n) ___________.

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?

A developer of a new subdivision wants to build homes that are all different. There are three different interior plans that can be combined with any of five different home exteriors. How many different homes can be built?

A collection of one or more basic outcomes is called a(n) _________.

The result of a particular experiment is called a(n) ___________.

In a survey of employee satisfaction, the following table summarizes the results in terms of employee satisfaction and gender. What is the probability that an employee is female and dissatisfied?

A rug manufacturer has decided to use seven compatible colors in her rugs. However, in weaving a rug, only five spindles can be used. In advertising, the rug manufacturer wants to indicate the number of different color groupings for sale. How many color groupings using the seven colors taken five at a time are there? (This assumes that five different colors will go into each rug-in other words, there are no repetitions of color.)

In flipping a fair coin, what is the probability of either heads or tails on one toss?