a. How many pairs need to be run off when there are 3 choices (A, B, C)?
A. 3 pairs
B. 4 pairs
C. 6 pairs
D. 9 pairs
b. Is counting the number of possible pairs in the pairwise-comparison method a problem of counting permutations or combinations?
A. Permutations
B. Combinations
C. Both
D. Neither
c. What is the pattern in the number of possible pairs when the choices are 3, 4, 5, 6, and 7?
A. Linear increase
B. Quadratic increase
C. Exponential increase
D. Constant
d. What is the recursive formula for the sequence of numbers of pairs in the pairwise-comparison method?
A.P(n)=P(n−1)+n
B.P(n)=P(n−1)×n
C.P(n)=2×P(n−1)
D.P(n)=n2