combinatrics and probability

Question 1

addition princible of counting

Answer 1

either or
m +n
caps or hats

Question 2

fundamental principle of counting

Answer 2

independent
shirts and pants
plate numbers, if bawal magrepeat, -1

Question 3

permutation

Answer 3

order is important

nPr = (n!) / (n-r)!

Question 4

distinguishable permutation

Answer 4

nauulit
therese
7! / 3!e

Question 5

cyclic permutation

Answer 5

circle

Question 6

combination

Answer 6

order is not important
nCr = n! / (n-r)!r!
cards