Records at a small college show the following about the enrollments of 100 first year students in mathematics, fine arts, and economics: 38 take math, 15 take math and economics, 42 take fine arts, 9 take math and fine arts, 20 take economics, 12 take math and economics but not fine arts and 4 take economics and fine arts Draw a venn diagram that represents this information Any Help!? :C
so first, what is a venn diagram?
can you draw an example?
|dw:1398919133539:dw|
Is something like this!
now what does each little intersection represent?
and what does the one in the center represent?
|dw:1398919189437:dw|
I did this one, but it is wrong, but it supposed to be like that
first check, does that add to 100?
second, there are no econ majors?
also how many pure math majors are there?
I think it is hard to understand if you don't know about Venn diagrams D':
the chapter is Sets and counting
not really
i mean you showed me a picture
but let's do a simple one to explain
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Do you see what the intersection means? Can you explain in your own words?
The intersection means that the people in the middle have both, a dog and a cat
A only have Dog and B only have Cat
good, so now with three:|dw:1398919695096:dw|
let's say c is snake
same A and b
Then A, B, and C have a snake
no,
that center is the intersection of all three circles
if with two circles the intersection meant they have both a dog and a cat. The intersection of the three means the have ________.
snake dog and a cat
ok so now, |dw:1398920059096:dw|
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