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weeeeeb [17]
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]3 years ago
6 0

Answer:

D

Step-by-step explanation:

stira [4]3 years ago
3 0

Answer:

0.33

Step-by-step explanation:

Edge 2020

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