STATS HELP!

[WellWIshER]

ON A BIASED DIE Probability of getting a 6 is 1/2 and p(5)=1/9
on a FAIR DIE ITS 1/6 4 BOTH!

I CHOOSE 1 OF DA 2 DIE randomly and roll it.if da score is 5 or 6 i win.

what is da probability tht i win???


thanx

 

[ahmed t]

well with the biased die its
(0.5*1/2) + (0.5*1/9)
and for unbiased
(0.5*1/6)+ (0.5*1/6)


add up both probabilities which will give u
17/36
hope it helps