The chance that a student passes a test having studied is 0

Statistics Sep 09, 2020

The chance that a student passes a test having studied is 0.9 while the chance of passing a test having not studied is 0.6. It is known that 85% of students studied for a test. Find the probability that a randomly selected student will have : a) studied and passed the test b) passed the test. c) studied given that they did not pass the test.