The probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade is: D. 0.80.
<h3>How to calculate the probability?</h3>
In this exercise, you're required to determine the probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade. Thus, we would apply Bayes's theorem.
- Let S represent studied for.
- Let B represent a score of B or higher grade
Therefore, we need to find P(S|B):

S|B = 0.80.
Read more on probability here: brainly.com/question/25870256
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<u>Complete Question:</u>
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.
I honestly haven't been in snow but I have of course been in winter.
It is hard for trees to get water in the winter because it hardly rains because the cloud are all covers with white and is cold so it is hard for the clouds to get rain in them and pour it out.
I hope this helped! :D
Answer: Water.
Explanation: He wants to choose water because it is the most healthiest out of them. First off a chocolate shake is high on sugar, and may lead to changes in your blood vessels, and red blood cells. A diet coke has artificial sweeteners, including aspartame. So your best answer is water.
Hope this helps!
Answer: the answer is 5%
Explanation: got it right on edge