Alright, future engineers!
**Permutations:** Ways to arrange items where order *DOES* matter.
Ex: Arranging 3 books from 5 on a shelf: P(5,3) = 60 ways.
Pro-Tip: Think 'P' for 'Position'! Order matters for unique arrangements.
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Alright, future engineers!
**Normal Distribution (Bell Curve):** A common symmetric probability distribution where data clusters around the mean.
Ex: Human heights or test scores often follow this shape.
Pro-Tip: ~68% of data falls within 1 SD of the mean!
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