OpenStudy (anonymous):

A two-day conference is going to be held in a city. The leading newspaper in the city says there is a 10% chance of rain on the first day of the conference and a 40% chance of rain on the second day. If the newspaper’s figures are correct, the chance that it rains in the city during the conference is: at least 0%, but we can’t get a better lower bound with the information given. at least 10% but it might be less than 40%. at least 40%.

4 years ago
OpenStudy (anonymous):

Hi, 6a) at least 40% it's right answer

4 years ago
OpenStudy (anonymous):

Also 6b) at most 50%. (waiting for "Best responce ;-) "

4 years ago
OpenStudy (anonymous):

please explain more. thank you

4 years ago