Hi Paula, I was following the example and hit a snag. When I try to parse, I receive an error message. I tried to research this on the internet to no avail. My screen looks exactly like the one above,

What text function is needed in this case? MID What is the full formula that you used? =VLOOKUP(MID(A2,4,2)+0,$E$1:$F$7,2,FALSE) That was fun. The really cool part...I've used Text Functions for years

What formula did you use to return the customer? =VLOOKUP(A8,A1:C4,2,FALSE) What formula did you use to return the Invoice value? =VLOOKUP(A8,A1:C4,3,FALSE) What would happen your formula if you entered

OK, I have to admit that I was disappointed there was no practice exercise. :-) I was so looking forward to working through a decision tree. Do you have any other examples to recommend for working through

Thank you for the introduction to ML through decision trees, entropy, and information gain. I enjoyed the bank example.

Entropy and information gain...new concepts for me. Looking forward to Part 2.

Perhaps it is too late to join the conversation, but I'll try anyway. I agree with the comment regarding the assumption of normality. In this case, a normality test based on such a small sample will likely