At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they w

Question

2 years ago

13

At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they w

ill 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. What is the probability that a randomly selected student studies for a test and gets a B or higher?
0.08
0.11
0.33
0.55

Mathematics

1 answer:

JulijaS [17] · Answer 1 · 2022-07-20T21:22:26+03:00

JulijaS [17]2 years ago

3 0

Answer:

.33

Step-by-step explanation: