Permutations and Combinations

Question 1

What does the symbol for factorial function mean? a. It means to divide a series of descending natural numbers. c. It means to divide a series of ascending natural numbers. b. It means to multiply a series of descending natural numbers. d. It means to multiply a series of ascending natural numbers. Please select the best answer from the choices provided

Revolt · Accepted Answer

B: B

Question 2

Compute the following: a. 6720 b. 5.6 c. 3360 d. 560 Please select the best answer from the choices provided

Revolt · Accepted Answer

D: D

Question 3

Decide if the following problem is an example of a permutation or a combination. State your rationale. For a study, 4 people are chosen at random from a group of 10 people. How many ways can this be done? a. combination - set of objects arrangedin a certain order c. combination - an unordered arrangement of objects b. permutation - set of objects arrangedin a certain order d. permutation - an unordered arrangement of objects Please select the best answer from the choices provided

Revolt · Accepted Answer

C: C

Question 4

There are 9 members on a board of directors. If they must elect a chairperson, a secretary, and a treasurer, how many different slates of candidates are possible?a.504c.729b.84d.362,880

Revolt · Accepted Answer

A: A

Question 5

If 6 newborn babies are randomly selected, how many different gender sequences are possible?a.720c.12b.36d.64

Revolt · Accepted Answer

D: D

Question 6

Compute the following: a. 16 b. 0 c. 64 d. 1 Please select the best answer from the choices provided

Revolt · Accepted Answer

D: D

Question 7

What does the symbol for factorial function mean? a. It means to divide a series of descending natural numbers. c. It means to divide a series of ascending natural numbers. b. It means to multiply a series of descending natural numbers. d. It means to multiply a series of ascending natural numbers. Please select the best answer from the choices provided

Question 8

How many different four-digit numbers can be made using the digits 1, 2, 3, 4, 5, 6 if no digit can be used more than once? a. b. c. d. Please select the best answer from the choices provided

Revolt · Accepted Answer

C: C

Question 9

Evaluate the given expression. a. 60480 c. 60495 b. 60505 d. 60470 Please select the best answer from the choices provided

Revolt · Accepted Answer

A: A

Question 10

Evaluate the given expression. a. 1,260 c. 1,275 b. 1,278 d. 1,270 Please select the best answer from the choices provided

Revolt · Accepted Answer

A: A

Permutations and Combinations Answers

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