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

3 years ago

11

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?
A) 0.08
B) 0.11
C) 0.33
D) 0.55

Mathematics

2 answers:

Mama L [17] · Answer 1 · 2022-06-01T04:11:39+03:00

Mama L [17]3 years ago

6 0

Answer:

D

Step-by-step explanation:

stira [4] · Answer 2 · 2022-06-01T05:49:20+03:00

stira [4]3 years ago

3 0

Answer:

0.33

Step-by-step explanation:

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