In a class of 21 students, 11 students passed the test. A total of 14 students completed their homework. If there are 4 students who did not pass the test AND did not complete their homework, what is the probability that a student passed the test GIVEN THAT they completed the homework?
Creating a two-way tables helps you visualize the problem. If you know that 11 people passed the test, then 10 people did not pass the test. 4 people didn't do their homework and didn't pass the test which means 6 people did the homework but did not pass the test. We also know that 14 students did their homework meaning that 14-6= 8 students did their homework and passed the test.
Hope it helps!
Do you really need to put “Hope it helps!” on every post? It’s very irritating!
Your answers are usually pretty good.
That phrase is very common among the younger crowd, so it’s not a unique trade mark, but it is always irritating, and it’s never enthusiastic.
The enthusiasm should come from your answer not your valediction.
Maybe you could use a trademark similar to what CPhill uses . But don’t copy his.
Heureka uses this
Omi67 also uses
Asinus uses this !
Maybe you could use some combination of two or three emos that identifies you, but doesn’t distract from your answer.