Hi there! Drawing an accurate Venn diagram in Excel can be a bit tricky, but I'm here to help you out. Here's a step-by-step guide to creating a Venn diagram in Excel that accurately represents your survey data:

1. First, you'll need to organize your survey data in a way that makes it easy to create the Venn diagram. Create a table with two columns, one for each question, and a row for each respondent. In each cell, enter "Yes" or "No" to indicate whether the respondent answered "Yes" or "No" to each question.
   
2. Next, you'll need to count the number of respondents who answered "Yes" to both questions. To do this, create a third column in your table and use the
   Formula:

   COUNTIFS 

   function to count the number of rows where both columns contain "Yes". The formula should look something like this:
   Formula:

   =COUNTIFS(A2:A100,"Yes",B2:B100,"Yes") 

3. Once you have the count of respondents who answered "Yes" to both questions, you can create the Venn diagram. Go to the Insert tab and select the SmartArt option. Choose the Basic Venn diagram from the list of options.
   
4. In the SmartArt graphic, click on the text boxes to add your data. The left circle should represent the first question, the right circle should represent the second question, and the overlapping area should represent the number of respondents who answered "Yes" to both questions.
   
5. To make the Venn diagram more accurate, you can adjust the size of the circles to reflect the proportion of respondents who answered "Yes" to each question. To do this, click on the circle you want to resize and drag the handles until it's the size you want.
   
6. Finally, you can customize the appearance of the Venn diagram by changing the colors, fonts, and other formatting options. Just click on the graphic and use the formatting options in the Design and Format tabs to make your changes.

And there you have it! With these steps, you should be able to create an accurate Venn diagram in Excel that represents your survey data. Let me know if you have any other questions!