##### ###### ##### ### # # ### # # ###### ## ## ## ## ## ## ## # # # # # ## ##### #### ##### # # # # # # # #### ## # ## ## ## ## # # # # # ## ## # ###### ## ### # ### # ######
##### ###### ##### ### # # ### # # ###### ## ## ## ## ## ## ## # # # # # ## ##### #### ##### # # # # # # # #### ## # ## ## ## ## # # # # # ## ## # ###### ## ### # ### # ######
(Multiply when choices are independent)
The product rule: If you do task A in m ways AND task B in n ways, and both tasks must be done, you can do both in m × n ways.
Example: You pick a shirt (4 options) AND pants (3 options). Total outfits: 4 × 3 = 12.
The key word is AND. When choices are independent (you make one choice AND another), you multiply.
