Question

Can someone tell me what I did wrong with this Venn diagram?

Answer 1

Ahh, I see the trick in this question. First of all, there are 30 students. Adding up the numbers in Venn Diagram 3, you get a # way over 30. It can't be right.

Answer 2

The problem does state 6 students passed both tests, so you do understand 6 can go in the middle.

Answer 3

However, the two outside bubbles are the number of student who ONLY passed either the chemistry or physics exam.

Answer 4

I just saw that too and am adding them up. so it coild only be venn 1 or venn 2 but that doesnt seem right.

Answer 5

Yes, it does seem right! Take it one step at a time. 20 students passed the chemistry test. Of those 20 students, 6 also passed the physics test and they're in the middle. How many students passed the chemistry test ONLY.

Answer 6

2 students must have not passed neither, right?

Answer 7

Oh I got it now thanks its 2

Answer 8

diagram 2 is correct - there are 2 who passed neither exam

Answer 9

feel like an idiot now

Answer 10

Naaww...that's how you learn :-)

Answer 11

:)

Answer 12

the 2 are placed outside of the circles as you can see

Answer 13

thanks guys

Answer 14

thanks for asking