Hello all,

I'm working on probability project for french roulette and I've fall into some strange matematics out of my knoweledge and need your valuable help.

this is the info:

Z = 1/37

R = 18/37

ZR = Z * R = 0.0131482834

and this is the formula:

Here my problem is that I don't know how to calculate Z and R values to get the rezult shown in a formula above

all I need to know is how to sum (ZR)i part from formula, can you explain that to me please.

Here is what I have done so far, and it gives me wrong result:

pr(push) = Z * (Z / (1 - R)) * R = 0,0006920149The original site where I found this is located here:

Ask the Wizard #259 - Wizard of Odds

If you have any question please ask me.

kind regards.

EDIT:

thank you, I solve it yeah

= 1/(1/Z * R) = 1,013323464

COOL