C3_W1_Exercise _6

I thought I was making progress at first but I am not. The Match Case is confusing me. Based on what I read I should be matching the pattern against a case but beside Case there is ‘none’ and I am not sure what should be here.

Is this what is causing me to get the error: “NameError: name ‘probabilty_f’ is not defined”, when I think I did define probability_f correctly?

I think I solved my own question - please ignore.

Hey @Trevor_Thompson1,
Thanks for letting us know that your issue has been resolved.