Factorial!
12 Questions
| Total Attempts: 183
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This is in preparation for writing a program to calculate the factorial of a user-provided number.
Questions and Answers
- 1.
![How many different orders can 3 students be in when they are standing in a line? - ProProfs]( "How many different orders can 3 students be in when they are standing in a line?")
How many different orders can 3 students be in when they are standing in a line?- A.
9
- B.
6
- C.
3
- D.
2
- E.
1
- 2.How many different possibilities are there for the first student?
- A.
1
- B.
2
- C.
3
- D.
4
- 3.After someone takes the first spot in the line, how many different possibilities are there for the second student?
- A.
0
- B.
1
- C.
2
- D.
3
- 4.After the first and second spots have been taken, how many students are available for the 3rd spot?
- A.
0
- B.
1
- C.
2
- D.
3
- 5.What can you do with the numbers 3, 2, and 1 to get the answer 6?
- A.
3 + 2 + 1 = 6
- B.
3 * 2 * 1 = 6
- C.
3 + 2 * 1 = 5
- D.
Both A and B result in 6, but B is the correct one, 3 * 2 * 1 = 6
- 6.
![How many different arrangements can 4 students be in, when they are standing in a line? - ProProfs]( "How many different arrangements can 4 students be in, when they are standing in a line?")
How many different arrangements can 4 students be in, when they are standing in a line?- A.
4
- B.
16
- C.
24
- D.
96
- 7.Which pattern of mathematical operations works for both 3 students, resulting in 6 ways, and also for 4 students, resulting in 24 ways?
- A.
4 + 3 + 2 + 1
- B.
4 * 3 * 2 * 1
- C.
4 + 3 * 2 * 1
- D.
4 + 3 + 2 * 1
- 8.4! = 4 * 3 * 2 * 1 = 24 This is called factorial. The symbol for factorial is the exclamation point. 4! = 243! = 3 * 2 * 1 = 6, so 3! = 6Mark ALL of the following that are acceptable ways to show how 4 factorial is equal to 24.
- A.
4! = 1 * 2 * 3 * 4 = 24
- B.
4! = 4 * 3 * 2 * 1 = 24
- C.
4! = 4 * 3 * 2 = 24
- D.
4! = 2 * 3 * 4 = 24
- 9.Terms are multiplied. Numbers are multiplied. Multipliers are multiplied. Which of these is also a word for any numbers that are being multiplied?
- A.
Factors
- B.
Products
- C.
Factorials
- D.
Addends
- 10.In 4! = 2 * 3 * 4 = 24, what is 24 called more specifically than a product?
- A.
Factor
- B.
Product
- C.
Factorial
- D.
Addend
- 11.Which of these assignment statements could be used for accumulating a sum in a computer program?
- A.
Sum = Number + Number + Number
- B.
Sum = Sum + Number
- C.
Sum = 0
- D.
Sum = Addend
- 12.Sing the variables Factor and Factorial, extend your understanding of accumulating a sum to adapt it to calculating a factorial, one factor at a time. Write the assignment statement.
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