Let's TryDirections: Choose the letter of the correct answer. Write the chosen letter on a separate sheetof paper.1. It refers to the different arrangements of a set of objects.A. permutationB. combinationC. selectionD. differentiation2. Which situation illustrates permutation?A. assigning rooms to conference participantsB. selecting 15 questions to answer out of 20 questions in a testC. choosing 3 science books to buy from a variety of choicesD. forming a committee of senators3. How many ways can 7 potted plants be arranged in a row?B. 2 520A. 5 040С. 720D. 2104. What is P(10, 5)?А. 20 240B. 30 240C. 40 240D. 50 2405. How many four-digit numbers can be formed from the numbers 1. 3, 4, 5, 6, 8,and 9 if repetition of digits is not allowed?А. 720B. 540С. 360D. 8406. Which of the following expressions represents the number ofdistinguishable permutations of the letters of the word COMBINATIONS?12!12!A. 12!В.2!2!2!2!C.2!2 2!7. In how many ways can 7 people be seated around a circular table if two of theminsist on sitting beside each other?A. 1,440В. 720С. 360D. 2408. Which of the following is equal to P [n, (n-1)]?В. n!A. nС. n(n-1)D. n(n-1)!9. If (7,r ) = 840, what is r?A. 2В. ЗС. 4D. 510. If (n, 3) = 720, then n =А. 11В. 10С.9D. 8

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1. It refers to the different arrangements of a set of objects. A. permutation C. selection B. combination D. differentiation 2. Which situation illustrates permutation? A. assigning rooms to conference participants B. selecting 15 questions to answer out of 20 questions in a test C. choosing 3 science books to buy from a variety of choices D. forming a committee of senators 3. How many ways can 7 potted plants be arranged in a row? A. 5 040 B. 2 520 C. 720 D. 210

1. It refers to the different arrangements of a set of objects. A. permutation C. selection B. combination D. differentiation 2. Which situation illustrates permutation? A. assigning rooms to conference participants B. selecting 15 questions to answer out of 20 questions in a test C. choosing 3 science books to buy from a variety of choices D. forming a committee of senators 3. How many ways can 7 potted plants be arranged in a row? A. 5 040 B. 2 520 C. 720 D. 210

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Let's Try
Directions: Choose the letter of the correct answer. Write the chosen letter on a separate sheet
of paper.
1. It refers to the different arrangements of a set of objects.
A. permutation
B. combination
C. selection
D. differentiation
2. Which situation illustrates permutation?
A. assigning rooms to conference participants
B. selecting 15 questions to answer out of 20 questions in a test
C. choosing 3 science books to buy from a variety of choices
D. forming a committee of senators
3. How many ways can 7 potted plants be arranged in a row?
B. 2 520
A. 5 040
С. 720
D. 210
4. What is P(10, 5)?
А. 20 240
B. 30 240
C. 40 240
D. 50 240
5. How many four-digit numbers can be formed from the numbers 1. 3, 4, 5, 6, 8,
and 9 if repetition of digits is not allowed?
А. 720
B. 540
С. 360
D. 840
6. Which of the following expressions represents the number of
distinguishable permutations of the letters of the word COMBINATIONS?
12!
12!
A. 12!
В.
2!2!2!2!
C.
2!2 2!
7. In how many ways can 7 people be seated around a circular table if two of them
insist on sitting beside each other?
A. 1,440
В. 720
С. 360
D. 240
8. Which of the following is equal to P [n, (n-1)]?
В. n!
A. n
С. n(n-1)
D. n(n-1)!
9. If (7,r ) = 840, what is r?
A. 2
В. З
С. 4
D. 5
10. If (n, 3) = 720, then n =
А. 11
В. 10
С.9
D. 8

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