An English class had 20 students who all took 2 tests.
8 students earned A's on the first test
6 Students earned A's on the second test
5 of them earned A's on both tests
If one of the 20 students is randomly selected, what is the probability that the student earned an A at least on one of the tests? Why?
8 students earned A's on the first test
6 Students earned A's on the second test
5 of them earned A's on both tests
If one of the 20 students is randomly selected, what is the probability that the student earned an A at least on one of the tests? Why?