SOLUTION: A math teacher gave her students two tests. On the first test, 64% of the class passed the test, but only 40% of the class passed both tests. What is the probability that a stud

Question 1131030: A math teacher gave her students two tests. On the first test, 64% of the class passed the test, but only 40% of the class passed both tests.
What is the probability that a student passes the second test, given that they passed the first one?

Answer by ikleyn(52798) (Show Source): You can put this solution on YOUR website!
.

The problem asks for the ratio of the number of those who passed both exams to the number of those who passed the first exam.


This ratio is   = .     ANSWER

RELATED QUESTIONS
A mathematics teacher gave her class two tests. 25% of the class passed both tests and... (answered by ikleyn)

A statistics professor gave her class two test. 25% of the class passed both tests and... (answered by lynnlo)

A QDA instructor gave a class two tests. 25% of the class passed both tests and 42%... (answered by fractalier)

In my maths class, only 40% of the class passed our first test. If only twelve students... (answered by stanbon)

Hi! So, I have a question on probability. The question is students in the class take... (answered by stanbon,robertb)

Please help with this type of question that does not give the total number of children. . (answered by josmiceli)

Can someone please help me with this question. A QDA Instructor gave a class two tests.... (answered by fractalier)

a class of 38 students took two tests in local history. 32 students passed test 1 and 34... (answered by ikleyn)