Probability that zach was communicating with her via e-mail

Reference no: EM13988456

When Zach wan ts to con Lact his girlfriend and he knows she is not at home, he is twice as likely to send her an e-mail as he is to leave a message oo her answering machine. The probability that &he responds to hls e-mail within three hours is 80%; her chances of being similarly prompt in answering a phone message increase to 90%. Suppose she responded to the message he left this morning within two hours. What is the probability that Zach was communicating with her via e-mail?

Reference no: EM13988456

Questions Cloud

An investor in the united states bought a one year : Determine the total ending value of the Singapore investment in Singapore dollars and then translate the value to U.S. dollars by multiplying by $0.62. Then compute the return on the $100,000.00

How self-disclosure affect relationship throughout the film : Explain how self-disclosure affected the relationship throughout the film. You might consider bringing in ideas of self and culture when answering this question.

Probability that the other coin in that drawer is gold : A desk has three drawers. The first contains two gold coins, the second has two silver coins, and the third has one gold coin and one silver coin. A coin is drawn from a drawer selected at random. Suppose the coin selected was silver. What is the ..

Develop a pro forma income statement for strategy project : Develop a pro forma income statement for this strategy project in its 1st year of operation (Only to the level of EBIT)First identify the major cost drivers for this recommended entry strategy

Probability that zach was communicating with her via e-mail : Suppose she responded to the message he left this morning within two hours. What is the probability that Zach was communicating with her via e-mail?

Problem regarding the conditional probability : Josh takes a twenty-question multiple-choice exam where each question has five answers. Some of the answers he kn ows, while others he gets right just by making lucky guesses. Suppose that the conditional probability of his knowing the answer to a..

The rule of 70 to calculate economic growth : How do you use the rule of 70 to calculate economic growth?

Probability that the student selected will be a male : Suppose the Registrar selects one person at random. Whal is the probability that the student selected will be a male?

How far is spring compressed if gas temperature is raised : The cylinder in the figure has a moveable piston attached to a spring. The cylinder's cross-section area is 10 cm2, it contains 0.0055 mol of gas, and the spring constant is 1500 N/m. At 15oC the spring is neither compressed nor stretched. How far ..

User Account

All Pages