I have a numerical question type: N1: "Please enter your age:"

And I then have a following hidden radio button type question:

R1: Your age range:
< 20
21 - 30
31 - 45
46 +

I'd like to populate the correct option in R1 based on the value entered in N1

Can anyone provide an example of how to do this?

I figured it out, and have attached a sample survey in case it helps anyone else.

Note that this only seems to work when you display Group by Group, and put the numeric input type question in the first group, and the radio and equation question in the 2nd group.

So it won't work in All in one type surveys.