Explanation Definition: A permutation is an ordering of distinct objects. If we select r different objects from a set of n objects, and arrange them in order, this is called a permutation of n objects taken r at a time. The number of permutations of n objects taken r at a time is denoted by P ( n , r ) . Formula for computing P ( n , r ) = n ! ( n − r ) ! Calculation: Given, The editorial staff of Oprah’s O Magazine is reviewing 17 articles expect that in addition to choosing the stories, the editorial staff must also decide in order the stories will appear. For get the number of ways we use the permutation P ( 17 , 8 ) Using the formula for permutation, P ( n , r ) = n ! ( n − r ) ! P ( 17 , 8 ) = 17 ! ( 17 − 8 ) !

6th Edition

ISBN: 9780134462356

Author: Pirnot

Publisher: PEARSON

See similar textbooks

Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear re…

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

Videos

Question

Chapter 12.3, Problem 47E

To determine

To find:

The number of years would it take to write all possible lists of eight articles.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 12.3, Problem 46E

Chapter 12.3, Problem 48E

Students have asked these similar questions

Answer this please

B1 The x distribution is a special case of Gamma distribution (not to be confused with gamma function; see below). The density function of the Gamma distribution with parameters and k is given by where -1 e -x/0 (x) = = г(k) Øk if x > 0, and otherwise, г(k) = √ ₁ k-1-x dx x' e is the gamma function. (a) For every k ≥ 1, 0 > 0, find the mode of the density. Hint: The algebra can be simplified by appropriate use of logarithms. ~ Now suppose that X1,..., Xn id Exp(\) and that we have a prior belief in A which is consistent with a prior distribution X. Gamma(a, b), for some a, ß, i.e. the prior density of is Baxa-1-BA T(a) e = so 01/ẞ and k = a. (b) Write down the likelihood, and show that the posterior distribution for \ is also a Gamma distribution, but with parameters a +n and B + Σ Xi. (c) Find the mode of the posterior distribution and examine the behaviour as n → ∞.

Find the differential of the function f(x, y) = 2x² - 2xy – 5y² at the point (-6, -5) using Ax = 0.3 and Ay = 0.05. dz = Now find Az and compare it to your answer above Ax= Hint: If entering a decimal, round to at least 5 places

Chapter 12 Solutions

Mathematics All Around-Workbook

Ch. 12.1 - In Exercises 14, you are selecting from the set...Ch. 12.1 - In Exercises 14, you are selecting from the set...Ch. 12.1 - In Exercises 14, you are selecting from the set...Ch. 12.1 - In Exercises 14, you are selecting from the set...Ch. 12.1 - Prob. 5E Ch. 12.1 - Prob. 6E Ch. 12.1 - Prob. 7E Ch. 12.1 - Prob. 8E Ch. 12.1 - How many different two-digit numbers can you form...Ch. 12.1 - How many different two-digit numbers can you form...

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.

The number of years would it take to write all possible lists of eight articles.

Solution Summary: The author calculates the number of years it takes to write all possible lists of eight articles.

Concept explainers

Videos

To find: The number of years would it take to write all possible lists of eight articles.

Want to see the full answer?

Chapter 12 Solutions

To find:

The number of years would it take to write all possible lists of eight articles.