If the probability that student A will pass an exam is 0.7, and the probability that student B will pass the same exam is 0.6, and the probability that both students will pass the exam is 0.5. What is the probability that at least one of them will pass?*1 point0.700.800.650.85

Question 1125% of all students find this BS examdifficult. You select four random students. What is the probability thatexactly two of them find this exam difficult?1 point0.020.060.210.07

Students take two independent tests. 30% of the students pass the test A and 60%pass the test B. Find the probability that a student selected at random will pass(a) both tests, (b) only one test.

An examination consists of two papers, Paper1 and Paper2. The probability of failing in paper1is 0.3 and that in paper 2 is 0.2. Given that a student has failed in paper2, the probability of failingin paper1 is 0.6. Find the probability of a student failing in both the papers.

A student can either pass or fail. A tutor fails 90% of students in a university subject. If 20 students are randomly assigned to this tutor, what is the probability that at most 1 student passes in the tutorial group? Choose the closest answer (depending on whether you work with a table or Excel you will get slightly different answers. Thus, choose the closest of the 4 possibilities below).Group of answer choices0.3920.1220.2700.608

The chance of a student passing an exam is 20%. The chance of a student passing the exam and getting above 90% marks in it is 5%. GIVEN that a student pass the examination, the probability that the student gets above 90% marks is: