Permutations and Combinations Flashcards
1
Q
A. What is the formula for permutation and combinations
B. Does order matter for permutations or combinations
A
2
Q
In counting what does “OR” & “AND” mean
A
OR means add, And means multiply
3
Q
Which one out of (7, 11, 20, 64, 100) not factor of 10!
A
Answer = 11 is not a factor of 10!
Any factorial N! is divisible by all the integers less than N and all factorials less than N
4
Q
A
5
Q
A
6
Q
A
7
Q
A
8
Q
A
9
Q
A
10
Q
A
11
Q
A
12
Q
A
13
Q
A
Answer - 150 ways (15 x 10)
14
Q
What does 0! mean
A
