Mathematics, 02.12.2020 22:20 zurfluhe
At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they will get a B or higher on the tests. If they do not study, there is a 20% chance that they will get a B or higher on the tests. The professor knows from prior surveys that 60% of students study for the tests. The probabilities are displayed in the tree diagram.
A tree diagram. Random student to studies for test is 0.6, and to does not study for test is 0.4. Studies for test to Gets B or higher is 0.55; does not get B or higher is 0.45. Does not study for test to Gets B or higher is 0.20; does not get B or higher is 0.80.
The professor informs the class that there will be a test next week. What is the probability that a randomly selected student studied if they do not pass the test with a B or higher?
0.45
0.46
0.54
0.59
Answers: 1
Mathematics, 22.06.2019 00:00
The equation of line wx is y=2x-5. write an equation of a line perpendicular to line wx in slopeintercept form the contains points (-1,-2)
Answers: 2
Mathematics, 22.06.2019 03:00
Asingle die is rolled twice. find the probability of rolling a 3 the first time and a 2 the second time
Answers: 1
At the beginning of the semester, a professor tells students that if they study for the tests, then...
Geography, 07.04.2021 16:50
English, 07.04.2021 16:50
History, 07.04.2021 16:50
Mathematics, 07.04.2021 16:50
English, 07.04.2021 16:50
Mathematics, 07.04.2021 16:50
Mathematics, 07.04.2021 16:50
Mathematics, 07.04.2021 16:50
World Languages, 07.04.2021 16:50
Chemistry, 07.04.2021 16:50
Mathematics, 07.04.2021 16:50