VENN DIAGRAM:

In a survey concerning smoking habits of students, it was found out that:

55% smoke Marlboro
50% smoke Winston
40% smoke E-cigarette
30% smoke Marlboro and Winston
20% smoke Marlboro and E-cigarette
12% smoke Winston and E-cigarette
10% smoke all of this

A. How many did not smoke at all?
B. How many did not smoke Winston?
C. How many smoke E-cigarette but not Winston
D. How many smoke Marlboro only?
E. How many smoke Marlboro and Winston but not E-cigarette?

Question

VENN DIAGRAM:

In a survey concerning smoking habits of students, it was found out that:

55% smoke Marlboro
50% smoke Winston
40% smoke E-cigarette
30% smoke Marlboro and Winston
20% smoke Marlboro and E-cigarette
12% smoke Winston and E-cigarette
10% smoke all of this

A. How many did not smoke at all?
B. How many did not smoke Winston?
C. How many smoke E-cigarette but not Winston
D. How many smoke Marlboro only?
E. How many smoke Marlboro and Winston but not E-cigarette?

loser66 · Answer

|dw:1371665747197:dw| can you put number in the graph?

anonymous · Answer

You can actually edit it.

loser66 · Answer

what do you mean?

loser66 · Answer

|dw:1371665922335:dw|got what I am doing?

anonymous · Answer

I'm sorry, I didn't actually understand. Yes, I get it. :)

loser66 · Answer

I go backward from the bottom, right? 10 % take all of them, and you got it. now next is take W and E is 12 that means |dw:1371666089899:dw|

anonymous · Answer

Yes, 10 + 2 = 12 (smoke W and E) Please continue!

loser66 · Answer

ok, keep up , M and E is 20, can you imitate my stuff above and put the number in?

anonymous · Answer

I will graph what I did but I don't think it's correct. Please check it when I'm done.

loser66 · Answer

sure

anonymous · Answer

|dw:1371666316682:dw|

loser66 · Answer

you goooooooooooot it

anonymous · Answer

But it's only 93%.

anonymous · Answer

The remaining 7% are non smokers?

loser66 · Answer

yep|dw:1371666610764:dw|