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:

In a high school geometry class, only half of the class earned a passing grade.  Out of all the students, 45% studied and passed.  What is the probability of the someone having studied, given that they passed?

Exam GradesScore Count[40–50) 1[50–60) 2[60–70) 4[70–80) 5[80–90) 2[90–100] 1What percentage of students earned less than a grade of 70 on the exam?9%15%47%53%93%

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

What percentage of students earned less than a grade of 70 on the exam?9%15%47%53%93%

In a class, 20% of the students were absent for an exam. 30% failed by 20 marks and 10% just passed.Find the average score of the class if the remaining students scored an average of 65 marks and the cut off for passing the exam is 40.45493640