[marbles]

"I guess the question is harder than I thought. I figured there's be a relatively simple solution, maybe using standard deviation that I didn't know."
-It's not that the question is hard to answer, it's just hard to answer it and have any faith in your results. You just have to take some pretty wild assumptions.

If you take results of the other six games and assume that present and future results are normally distributed around a mean (not true) and that the sample is statistically significant (also not true), you have a mean of 47.0 and a standard deviation of 10.6. That would put this result of 9.0 at roughly 3.6 standard deviations from the mean... Or, in short, wildly unlikely.