
Concept explainers
(a)
To find: the number of unemployed workers in the 16-19 age group.
(a)

Answer to Problem 58E
The number of unemployed workers is 1.3752 millions.
Explanation of Solution
Given information:
In 2013, there were approximately 11.46 million unemployed workers in the U.S. The circle graph shows the age profit of these unemployed workers.
Given graph:
Calculation:
Here, the percentage for 16-19 age group is 12%.
The number of unemployed workers is:
(b)
To find: the number of unemployed workers who are 45 years or older.
(b)

Answer to Problem 58E
The number of unemployed workers is 3.3234 millions.
Explanation of Solution
Given information:
In 2013, there were approximately 11.46 million unemployed workers in the U.S. The circle graph shows the age profit of these unemployed workers.
Given graph:
Calculation:
Here, the percentage for 45-46 age group is 29%.
The number of unemployed workers is:
(c)
To find: the probability that a person selected at random from the population of unemployed workers is in the 25-44 age group.
(c)

Answer to Problem 58E
The probability is 0.39.
Explanation of Solution
Given information:
In 2013, there were approximately 11.46 million unemployed workers in the U.S. The circle graph shows the age profit of these unemployed workers.
Given graph:
Calculation:
Here, the percentage for 25-44 age group is 39%.
The number of unemployed workers is:
Hence, the probability is:
(d)
To find: the probability that a person selected at random from the population of unemployed workers is in the 25-64 years old.
(d)

Answer to Problem 58E
The probability is 0.68.
Explanation of Solution
Given information:
In 2013, there were approximately 11.46 million unemployed workers in the U.S. The circle graph shows the age profit of these unemployed workers.
Given graph:
Calculation:
Here, the percentage for 25-64 age group is
The number of unemployed workers is:
Hence, the probability is:
(e)
To find: the probability that a person selected at random from the population of unemployed workers is 45 or older.
(e)

Answer to Problem 58E
The probability is 0.29.
Explanation of Solution
Given information:
In 2013, there were approximately 11.46 million unemployed workers in the U.S. The circle graph shows the age profit of these unemployed workers.
Given graph:
Calculation:
The number of unemployed workers above age is: 3.3234 millions.
Hence, the probability is:
Chapter 8 Solutions
Precalculus with Limits: A Graphing Approach
- A 20 foot ladder rests on level ground; its head (top) is against a vertical wall. The bottom of the ladder begins by being 12 feet from the wall but begins moving away at the rate of 0.1 feet per second. At what rate is the top of the ladder slipping down the wall? You may use a calculator.arrow_forwardExplain the focus and reasons for establishment of 12.4.1(root test) and 12.4.2(ratio test)arrow_forwarduse Integration by Parts to derive 12.6.1arrow_forward
- Explain the relationship between 12.3.6, (case A of 12.3.6) and 12.3.7arrow_forwardExplain the key points and reasons for the establishment of 12.3.2(integral Test)arrow_forwardUse 12.4.2 to determine whether the infinite series on the right side of equation 12.6.5, 12.6.6 and 12.6.7 converges for every real number x.arrow_forward
- use Corollary 12.6.2 and 12.6.3 to derive 12.6.4,12.6.5, 12.6.6 and 12.6.7arrow_forwardExplain the focus and reasons for establishment of 12.5.1(lim(n->infinite) and sigma of k=0 to n)arrow_forwardExplain the focus and reasons for establishment of 12.5.3 about alternating series. and explain the reason why (sigma k=1 to infinite)(-1)k+1/k = 1/1 - 1/2 + 1/3 - 1/4 + .... converges.arrow_forward
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning





