change ad frequency

How do i change the frequency of ads shown to like 1 out of 5 times?

 

Update. I've change the Interstistals frequency to .2 and it still shows up every time.

 

the number you put in the there is the amount of times a menu appears before it displays an interstitial. so, a .2 would mean, every time, because it's actually less than one. If you put a 5 in there, every 5th time you see the game over screen (for example) it would show an interstitial.

 

Ahh, thanks!

 

this helps me too... thanks heathclose!