## Q-Q plot equivalent for discrete variable?

Hello,

You can use a Q-Q plot to visually test if 2 continuous variables are from the same distribution and you get a straight line.

Is there a way to visually test if 2 discrete variables are from the same distribution? Also is there a way to test it mathematically?

Thanks
 PhysOrg.com science news on PhysOrg.com >> Leading 3-D printer firms to merge in $403M deal (Update)>> LA to give every student an iPad;$30M order>> CIA faulted for choosing Amazon over IBM on cloud contract
 Blog Entries: 2 You can do a Q-Q plot for discrete data, but it's a bit more tricky, i'll try to find a source for you.
 Thanks

## Q-Q plot equivalent for discrete variable?

Hi there,

Apart from using a Q-Q plot is there any other way to test if two variables have the same distribution?

Thanks
 Recognitions: Science Advisor A chisquare test?

 Similar discussions for: Q-Q plot equivalent for discrete variable? Thread Forum Replies Engineering, Comp Sci, & Technology Homework 0 Calculus & Beyond Homework 4 Calculus & Beyond Homework 9 Calculus & Beyond Homework 1 Calculus & Beyond Homework 1