Calculus for Business, Economics, Life Sciences, and Social Sciences (13th Edition)
13th Edition
ISBN: 9780321869838
Author: Raymond A. Barnett, Michael R. Ziegler, Karl E. Byleen
Publisher: PEARSON
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Chapter B.2, Problem 16E
Let a1, a2, a3, …, an, … be a geometric sequence. In Problems 15–24, find the indicated quantities.
16. a1 = 32;
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Suppose the number of people who register to attend the Tucson Festival of Books can be modeled by P(t) = k(1.1),
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t =
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For unemployed persons in the United States, the average number of months of unemployment at the end of December 2009 was approximately seven months (Bureau of Labor Statistics, January 2010). Suppose the following data are for a particular region in upstate New York. The values in the first column show the number of
months unemployed and the values in the second column show the corresponding number of unemployed persons.
Months
Unemployed
Number
Unemployed
1
1029
2
1686
3
2269
4
2675
5
3487
6
4652
7
4145
8
3587
9
2325
10
1120
Let x be a random variable indicating the number of months a person is unemployed.
a. Use the data to develop an empirical discrete probability distribution for x (to 4 decimals).
(x)
f(x)
1
2
3
4
5
6
7
8
9
10
b. Show that your probability distribution satisfies the conditions for a valid discrete probability distribution.
The input in the box below will not be graded, but may be reviewed and considered by your instructor.
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c. What is the probability that a…
West Virginia has one of the highest divorce rates in the nation, with an annual rate of approximately 5 divorces per 1000 people (Centers for Disease Control and Prevention website, January 12, 2012). The Marital Counseling Center, Inc. (MCC) thinks that the high divorce rate in the state may require them to hire additional staff.
Working with a consultant, the management of MCC has developed the following probability distribution for x = the number of new clients for marriage counseling for the next year.
Excel File: data05-19.xls
x
10
f(x)
.05
20
30
.10
.10
40
.20
50
60
.35
.20
a. Is this probability distribution valid?
- Select your answer-
Explain.
f(x)
Σf(x)
Select your answer
Select your answer
b. What is the probability MCC will obtain more than 30 new clients (to 2 decimals)?
c. What is the probability MCC will obtain fewer than 20 new clients (to 2 decimals)?
d. Compute the expected value and variance of x.
Expected value
Variance
clients per year
squared clients per year
Chapter B.2 Solutions
Calculus for Business, Economics, Life Sciences, and Social Sciences (13th Edition)
Ch. B.2 - Which of the following can be the first four terms...Ch. B.2 - (A)If the 1st and 15th terms of an arithmetic...Ch. B.2 - Prob. 3MPCh. B.2 - MATCHED PROBLEM 4 Find the sum of all the odd...Ch. B.2 - Find the sum of the first eight terms of the...Ch. B.2 - Repeat Example 6 with a loan of 6,000 over 5...Ch. B.2 - Repeat Example 7 with a tax rebate of 2,000....Ch. B.2 - In Problems 1 and 2, determine whether the...Ch. B.2 - In Problems 1 and 2, determine whether the...Ch. B.2 - In Problems 38, determine whether the finite...
Ch. B.2 - In Problems 38, determine whether the finite...Ch. B.2 - Prob. 5ECh. B.2 - In Problems 38, determine whether the finite...Ch. B.2 - In Problems 38, determine whether the finite...Ch. B.2 - In Problems 38, determine whether the finite...Ch. B.2 - Let a1, a2, a3, , an, be an arithmetic sequence....Ch. B.2 - Let a1, a2, a3, , an, be an arithmetic sequence....Ch. B.2 - Prob. 11ECh. B.2 - Let a1, a2, a3, , an, be an arithmetic sequence....Ch. B.2 - Let a1, a2, a3, , an, be an arithmetic sequence....Ch. B.2 - Prob. 14ECh. B.2 - Prob. 15ECh. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Prob. 17ECh. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Prob. 19ECh. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - Prob. 23ECh. B.2 - Let a1, a2, a3, , an, be a geometric sequence. In...Ch. B.2 - S41=k=141(3k+3)=?Ch. B.2 - Prob. 26ECh. B.2 - S8=k=18(2)k1=?Ch. B.2 - S8=k=182k=?Ch. B.2 - Find the sum of all the odd integers between 12...Ch. B.2 - Find the sum of all the even integers between 23...Ch. B.2 - Find the sum of each infinite geometric sequence...Ch. B.2 - Repeat Problem 31 for: (A)16, 4, 1, (B)1, 3, 9, ...Ch. B.2 - Find f(1)+f(2)+f(3)++f(50) if f(x) = 2x 3.Ch. B.2 - Find g(1)+g(2)+g(3)++g(100) if g(t) = 18 3t.Ch. B.2 - Find f(1)+f(2)++f(10) if f(x)=(12)x.Ch. B.2 - Find g(1)+g(2)++g(10) if g(x) = 2x.Ch. B.2 - Prob. 37ECh. B.2 - Show that the sum of the first n even positive...Ch. B.2 - If r = 1, neither the first form nor the second...Ch. B.2 - Prob. 40ECh. B.2 - Does there exist a finite arithmetic series with...Ch. B.2 - Does there exist a finite arithmetic series with...Ch. B.2 - Does there exist a infinite geometric series with...Ch. B.2 - Does there exist an infinite geometric series with...Ch. B.2 - Loan repayment. If you borrow 4,800 and repay the...Ch. B.2 - Loan repayment. If you borrow 5,400 and repay the...Ch. B.2 - Economy stimulation. The government, through a...Ch. B.2 - Economy stimulation. Due to reduced taxes, a...Ch. B.2 - Compound interest. If 1,000 is invested at 5%...Ch. B.2 - Compound interest. If P is invested at 100r%...
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