Exam 7: Randomness and Probability

During its grand opening week, Stickler's bicycle shop offers a "wheel of discount savings." After customers select the items they wish to purchase, they spin the wheel to Determine the discount they will receive.The wheel is divided into 12 slices.Six slices Are red and award a 10% discount, three slices are white and award a 20% discount, and Two slices are blue and award a 40% discount.The remaining slice is gold and awards a 100% discount! The probability that a customer gets at least a 40% discount is

As an incentive to get new customers, the local branch of a bank launched "bouncing for bucks." During this week long event, any customer opening a new checking account With the bank would have the opportunity to throw a bouncy rubber ball into a large box Divided into squares.Each square was labeled with a dollar amount that would be Deposited into his/her new checking account.The way the box was labeled is shown Below.What is the probability that a customer does not get $50?

A manufacturer claims that its drug test will detect steroid use (that is, show positive for an athlete who uses steroids) 95% of the time.Further, 15% of all steroid-free Individuals also test positive.10% of the rugby team members use steroids.Your friend On the rugby team has just tested positive.The correct probability tree looks like

A recent survey of local cell phone retailers showed that of all cell phones sold last month, 64% had a camera, 28% had a music player and 22% had both.The probability That a cell phone sold last month had a camera or a music player is

Does it appear that choice of instructional method (traditional or online) and division (sales, quality and operations) are independent? Explain.

A recent survey of local cell phone retailers showed that of all cell phones sold last month, 64% had a camera, 28% had a music player and 22% had both.Which of the Following statements about cell phones sold last month is true?

A recent survey of local cell phone retailers showed that of all cell phones sold last month, 64% had a camera, 28% had a music player and 22% had both.The probability That a cell phone sold last month did not have either a camera or a music player is

It has been reported that men are more likely than women to participate in online auctions.In a recent survey, 65% of respondents reported that they had participated in an Online auction.In this same survey, 45% of respondents were men and 38% were men Who had participated in online auctions.What is the probability that a respondent had Participated in an online auction given that he is male?

During its grand opening week, Stickler's bicycle shop offers a "wheel of discount savings." After customers select the items they wish to purchase, they spin the wheel to Determine the discount they will receive.The wheel is divided into 12 slices.Six slices Are red and award a 10% discount, three slices are white and award a 20% discount, and Two slices are blue and award a 40% discount.The remaining slice is gold and awards a 100% discount! The probability that two customers in a row get a 20% discount is

The option to buy extended warranties is commonplace with most electronics purchases.But does the type of purchase affect a consumer's willingness to pay extra for An extended warranty? Data for 420 consumers who purchased digital cameras and Laptop computers from a leading electronics retailer are summarized in the table.The Probability that a consumer purchases a digital camera and an extended warranty is

As an incentive to get new customers, the local branch of a bank launched "bouncing for bucks." During this week long event, any customer opening a new checking account With the bank would have the opportunity to throw a bouncy rubber ball into a large box Divided into squares.Each square was labeled with a dollar amount that would be Deposited into his/her new checking account.The way the box was labeled is shown Below.What is the probability that a customer gets $50?

A manufacturer claims that its drug test will detect steroid use (that is, show positive for an athlete who uses steroids) 95% of the time.Further, 15% of all steroid-free Individuals also test positive.10% of the rugby team members use steroids.Your friend On the rugby team has just tested positive.The probability that he uses steroids is

A small manufacturing company recently instituted Six Sigma training for its employees.Two methods of training were offered: online and traditional classroom. Management was interested in whether the division in which employees worked affected their choice of method.Below is a table summarizing the data. a.What is the probability that an employee chose online training? b.What is the probability that an employee is in the quality division and chose online training? c.What is the probability that an employee chose online training given that he/she is in the sales division?

It has been reported that men are more likely than women to participate in online auctions.In a recent survey, 65% of respondents reported that they had participated in an Online auction.In this same survey, 45% of respondents were men and 38% were men Who had participated in online auctions.Which of the following is true?

Suncast Cable offers high definition (HD) cable TV, Internet and phone services to its customers.For those service issues that can be resolved by calling its technical Support center, Suncast's goal is to have the problem solved within 30 minutes.In order To determine how well it is achieving this goal, they monitored calls to its technical Support center over the last three months.The data compiled is shown in the table below. What is the probability that a call to the technical support center involved an issue with Internet service or was not resolved within 30 minutes?

Suppose you visit Stickler's bicycle shop in the hopes of getting a 100% discount on your purchases.As you wait your turn in line, there are three gold winners in a row.The two customers in line behind you begin to discuss what's happened.One believes that the streak of three gold winners has killed anyone else's chances of getting a 100% discount, while the other says just the opposite… that the wheel's "hot streak" increases their chances of getting a 100% discount.Comment on these opinions. 7-4 Chapter 7 Randomness and Probability

The option to buy extended warranties is commonplace with most electronics purchases.But does the type of purchase affect a consumer's willingness to pay extra for An extended warranty? Data for 420 consumers who purchased digital cameras and Laptop computers from a leading electronics retailer are summarized in the table.The Probability that a consumer does not purchase an extended warranty is

It has been reported that men are more likely than women to participate in online auctions.In a recent survey, 65% of respondents reported that they had participated in an Online auction.In this same survey, 45% of respondents were men and 38% were men Who had participated in online auctions.What is the probability that a respondent Selected at random is female and has never participated in an online auction?

The option to buy extended warranties is commonplace with most electronics purchases.But does the type of purchase affect a consumer's willingness to pay extra for An extended warranty? Data for 420 consumers who purchased digital cameras and Laptop computers from a leading electronics retailer are summarized in the table.The Probability that a consumer purchases an extended warranty given that he/she has Purchased a digital camera is

A recent survey of local cell phone retailers showed that of all cell phones sold last month, 64% had a camera, 28% had a music player and 22% had both. a.What is the probability that a cell phone sold last month had a camera or a music player? b.What is the probability that a cell phone sold last month did not have either a camera or a music player? c.Is a cell phone having a camera and a music player mutually exclusive? Explain.