Concept explainers
(a)
To write the matrices to give the information on percent of total population.
(a)
Answer to Problem 2PS
The matrices are-
and
Explanation of Solution
The total population in 2011 was 311721632 and the total population in 2014 was 318857056.
Multiply each entry for 2011 by. To get percent of the total population in 2011.
Let us multiply first entry as follows-
Similarly, after multiplying each entry, the following result is obtained-
Multiply each entry for 2014 by . To get percent of the total population in 2014.
Let us multiply first entry as follows-
Similarly, after multiplying each entry, the following result is obtained-
b.
To write the matrix that gives the change in the percent of the population.
b.
Answer to Problem 2PS
The matrix is-
Explanation of Solution
The change in percentage is the difference of matrix of 2011 and matrix of 2014.
c.
To find which gender and age group had decreased their percentage.
c.
Answer to Problem 2PS
Age group of 0-19 and 20-64and gender is male and female.
Explanation of Solution
Based on the result from part the male and female had percent that decreased from 2011 to 2014 of the age group gender and age group had percent that decreased from 2011 to 2014 of age group of 0-19 and 20-64.
Chapter 8 Solutions
EBK PRECALCULUS W/LIMITS
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- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning