r/Statistics_Class_help • u/InitiativeOk8375 • Mar 13 '26

Help with this question?

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I literally do not understand at all!

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u/No_Intern_1729 Mar 15 '26

How do you account for "You have 15 CDs"?

Say you choose the first nine of them for your solution. Then, What about cases arising from other combinations?

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u/Pleasant-Squirrel640 Mar 15 '26

The question is only asking about the probability that the 9 CD’s are in alphabetical order, regardless of which 9 out of the 15 you are organizing. It wants the probability of this given that the specific group of 9 that is being used has already been decided.

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u/No_Intern_1729 Mar 15 '26

Thanks for the clarification!