initially averages about .01 a view if you are in a medium paying keyword like "internet marketing" or "diet"
then more after about 2-3 months, like up to .02 per view.
depends on the number of blocks you have - as the ads in the second and third blocks dont pay as much, but you get more clicks.
depends on the placemnt of the ads,
depends if you have useful information, if you do- people get what they want and dont need to click on.
it then goes up if you have a high paying keyword like Manhattan Hair removal, but obviously there is only a very limited amount of traffic you can get for this and a limit to the advertisers budgets
also depends on the layout of your blog, some patterns just work, People seem to look at the far right first, so if it is a frantic keyword like "itchy crutch" they will click there, then they will look to the right, you know like people read left to right, if it is a more thoughtful pondering like "internet marketing" they are thinking as they get to the end of their review of your site and will ready the ad that says "I made $2 a day with adsense and so can you" and click
just shove the adsense code on and see - this is also usefull for finding out how much you will make