# Drawing a Venn diagram

• Mar 9th 2009, 05:26 PM
j-ram
Drawing a Venn diagram
Word problem: in a recent survey of 160 third graders, 28 were gymnasts, 60 were dancers, 99 were swimmers,13 were gymnasts and dancers, 21 were dance and swimming,19 were swimming and gym. 9 werre all three.Draw a Venn Diagram.
a) how many were in dance OR swimming? my answer 123
b) yow many were in at least 1 activity? my answer 5
c) how many were in at most two activities? 151
I don't know how to draw the venn diagram on this site! Can anyone check my answers?(Happy)
• Mar 10th 2009, 06:07 AM
Venn diagram
Hello j-ram
Quote:

Originally Posted by j-ram
Word problem: in a recent survey of 160 third graders, 28 were gymnasts, 60 were dancers, 99 were swimmers,13 were gymnasts and dancers, 21 were dance and swimming,19 were swimming and gym. 9 werre all three.Draw a Venn Diagram.
a) how many were in dance OR swimming? my answer 123
b) yow many were in at least 1 activity? my answer 5
c) how many were in at most two activities? 151
I don't know how to draw the venn diagram on this site! Can anyone check my answers?(Happy)

See attached diagram.

I make the answers (a) 160 - 22 = 138 (assuming that this is an inclusive OR); (b) 160 - 17 = 143; (c) 160 - 9 = 151

• Mar 10th 2009, 04:39 PM
j-ram
I really appreciate the help. I had 39 where you have 35 for dancing.
I had 8 where you have 12 for swimming and dance.
I had 72 where you have 69, and I had nothing in the U.
Close only counts in horse shoes - right?
Please tell me where you found the venn? Is it something I can do?
• Mar 10th 2009, 10:48 PM
Venn diagram
Hello j-ram
Quote:

Originally Posted by j-ram
I really appreciate the help. I had 39 where you have 35 for dancing.
I had 8 where you have 12 for swimming and dance.
I had 72 where you have 69, and I had nothing in the U.

I'm not quite sure how you got your answers. Do you understand how I got mine? I started right in the middle (9), then work outwards - there are 21 doing dance and swimming, so subtract 9 from 21, to get 12, and so on.
Quote:

Close only counts in horse shoes - right?
I don't understand what you mean here. Perhaps we use different words for this!
Quote:

Please tell me where you found the venn? Is it something I can do?
I drew the Venn diagram in CorelDraw, and saved it as a .jpg, before using the 'Manage Attachments' button to attach it to the posting.