# Question

Look again at the data from the coffeehouse survey in Exercise 53.

a) If we select a person at random, what’s the probability we choose a person between 18 and 24 years old who is spending more at coffeehouses?

b) Among the 18- to 24-year olds, what is the probability that the person responded that they are not spending more time at coffeehouses?

c) What’s the probability that a person who spends the same amount of time at coffeehouses is between 35 and 44 years old?

d) If the person responded that they spend more time, what’s the probability that they are at least 65 years old?

e) What’s the probability that a person at least 65 years old spends the same amount of time?

f) Are the responses to the question and age independent?

a) If we select a person at random, what’s the probability we choose a person between 18 and 24 years old who is spending more at coffeehouses?

b) Among the 18- to 24-year olds, what is the probability that the person responded that they are not spending more time at coffeehouses?

c) What’s the probability that a person who spends the same amount of time at coffeehouses is between 35 and 44 years old?

d) If the person responded that they spend more time, what’s the probability that they are at least 65 years old?

e) What’s the probability that a person at least 65 years old spends the same amount of time?

f) Are the responses to the question and age independent?

## Answer to relevant Questions

Look again at the data in the electronic communications in Exercise 54. a) If we select a respondent at random, what’s the probability that we choose a person earning less than $50 K and responded “somewhat”? b) Among ...The CEO of a mid-sized company has to relocate to another part of the country. To make it easier, the company has hired a relocation agency to help purchase a house. The CEO has 5 children and so has specified that the house ...A company selling glass ornaments by mail-order expects, from previous history, that 6% of the ornaments it ships will break in shipping. You purchase two ornaments as gifts and have them shipped separately to two different ...A commuter must pass through five traffic lights on her way to work and will have to stop at each one that is red. After keeping a record for several months, she developed the following probability model for the number of ...At a casino, people play the slot machines in hopes of hitting the jackpot, but most of the time, they lose their money. A certain machine pays out an average of $0.92 (for every dollar played), with a standard deviation of ...Post your question

0