PROBABILITY
PLEASE PLEASE HELP! TY!
1. How many arrangements can be made for an identification code consisting of any two letters except I and O, followed by a single digit?
2. Maxine, Hakim, and Leonard are all sitting in the back seat of a car.
a. How many ways can they be seated in the back seat?
b. Make a list of the possible arrangements.
so any 2 leters except I and O assuming you are allowed to repeat letters and assuming you only include lowercase letters 26 leters in alphabet I and O=2 letters 26-2=24 2 letters combos =24 times 24 then 10 number so 24 times 24 times 10=5760
2. this is permutations, or slot meathod so
1st seat, 3 possiblities 2nd seat 2 possiblities since 1 already in 1st seat 3rd seat 1 possiblities since 2 already in 1st and 2nd seat so
the answer is 3 times 2 times 1=6 possiblities so a. 6