Basic Technical Mathematics
11th Edition
ISBN: 9780134437705
Author: Washington
Publisher: PEARSON
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Chapter 19.1, Problem 36E
To determine
The sum of the first 20 terms of the sequence where the first three terms of the arithmetic sequence are x, 5 and
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Let m(t) be a continuous function with a domain of all real numbers. The table below shows some of the values of m(t) .
Assume the characteristics of this function are represented in the table.
t
-3 -2 8 11
12
m(t) -7 6
3
-9
0
(a) The point (-3, -7) is on the graph of m(t). Find the corresponding point on the graph of the transformation y = -m(t) + 17.
(b) The point (8, 3) is on the graph of m(t). Find the corresponding point on the graph of the transformation y =
-m (−t) .
24
(c) Find f(12), if we know that f(t) = |m (t − 1)|
f(12) =
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.
blank
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 19 Solutions
Basic Technical Mathematics
Ch. 19.1 - Find the 20th term of the arithmetic sequence 2,...Ch. 19.1 - Prob. 2PECh. 19.1 - Prob. 3PECh. 19.1 - Prob. 1ECh. 19.1 - Prob. 2ECh. 19.1 - Prob. 3ECh. 19.1 - Prob. 4ECh. 19.1 - In Exercises 3–6, write the first five terms of...Ch. 19.1 - Prob. 6ECh. 19.1 - Prob. 7E
Ch. 19.1 - Prob. 8ECh. 19.1 - Prob. 9ECh. 19.1 - In Exercises 7–14, find the nth term of the...Ch. 19.1 - Prob. 11ECh. 19.1 - Prob. 12ECh. 19.1 - Prob. 13ECh. 19.1 - Prob. 14ECh. 19.1 - In Exercises 15–18, find the sum of the n terms of...Ch. 19.1 - Prob. 16ECh. 19.1 - Prob. 17ECh. 19.1 - Prob. 18ECh. 19.1 - Prob. 19ECh. 19.1 - Prob. 20ECh. 19.1 - Prob. 21ECh. 19.1 - Prob. 22ECh. 19.1 - Prob. 23ECh. 19.1 - Prob. 24ECh. 19.1 - Prob. 25ECh. 19.1 - Prob. 26ECh. 19.1 - In Exercises 27–56, find the indicated quantities...Ch. 19.1 - Prob. 28ECh. 19.1 - Prob. 29ECh. 19.1 - Prob. 30ECh. 19.1 - In Exercises 27–56, find the indicated quantities...Ch. 19.1 - Prob. 32ECh. 19.1 - Prob. 33ECh. 19.1 - Prob. 34ECh. 19.1 - Prob. 35ECh. 19.1 - Prob. 36ECh. 19.1 - Prob. 37ECh. 19.1 - Prob. 38ECh. 19.1 - Prob. 39ECh. 19.1 - Prob. 40ECh. 19.1 - Prob. 41ECh. 19.1 - In Exercises 27–56, find the indicated quantities...Ch. 19.1 - Prob. 43ECh. 19.1 - In Exercises 27–56, find the indicated quantities...Ch. 19.1 - Prob. 45ECh. 19.1 - Prob. 46ECh. 19.1 - Prob. 47ECh. 19.1 - Prob. 48ECh. 19.1 - In Exercises 27–56, find the indicated quantities...Ch. 19.1 - Prob. 50ECh. 19.1 - Prob. 51ECh. 19.1 -
In Exercises 27–56, find the indicated quantities...Ch. 19.1 - Prob. 53ECh. 19.1 - Prob. 54ECh. 19.1 - Prob. 55ECh. 19.1 - Prob. 56ECh. 19.2 -
Find the sixth term of the geometric sequence 8,...Ch. 19.2 - Prob. 2PECh. 19.2 - Prob. 3PECh. 19.2 - Prob. 1ECh. 19.2 - Prob. 2ECh. 19.2 - Prob. 3ECh. 19.2 - Prob. 4ECh. 19.2 - Prob. 5ECh. 19.2 - Prob. 6ECh. 19.2 - Prob. 7ECh. 19.2 - Prob. 8ECh. 19.2 - Prob. 9ECh. 19.2 - Prob. 10ECh. 19.2 - Prob. 11ECh. 19.2 - Prob. 12ECh. 19.2 - Prob. 13ECh. 19.2 - Prob. 14ECh. 19.2 - In Exercises 15–20, find the sum of the first n...Ch. 19.2 - Prob. 16ECh. 19.2 - Prob. 17ECh. 19.2 - Prob. 18ECh. 19.2 - Prob. 19ECh. 19.2 - Prob. 20ECh. 19.2 - Prob. 21ECh. 19.2 - Prob. 22ECh. 19.2 -
In Exercises 21–28, find any of the values of a1,...Ch. 19.2 - Prob. 24ECh. 19.2 -
In Exercises 21–28, find any of the values of a1,...Ch. 19.2 - Prob. 26ECh. 19.2 - Prob. 27ECh. 19.2 - Prob. 28ECh. 19.2 - Prob. 29ECh. 19.2 - Prob. 30ECh. 19.2 - Prob. 31ECh. 19.2 - Prob. 32ECh. 19.2 - Prob. 33ECh. 19.2 - Prob. 34ECh. 19.2 - Prob. 35ECh. 19.2 - Prob. 36ECh. 19.2 - Prob. 37ECh. 19.2 - Prob. 38ECh. 19.2 - Prob. 39ECh. 19.2 - Prob. 40ECh. 19.2 - Prob. 41ECh. 19.2 - Prob. 42ECh. 19.2 - Prob. 43ECh. 19.2 - Prob. 44ECh. 19.2 - Prob. 45ECh. 19.2 - Prob. 46ECh. 19.2 - Prob. 47ECh. 19.2 - Prob. 48ECh. 19.2 - Prob. 49ECh. 19.2 - Prob. 50ECh. 19.2 -
In Exercises 29–56, find the indicated...Ch. 19.2 - Prob. 52ECh. 19.2 -
In Exercises 29–56, find the indicated...Ch. 19.2 - Prob. 54ECh. 19.2 -
In Exercises 29–56, find the indicated...Ch. 19.2 - Prob. 56ECh. 19.3 - Prob. 1PECh. 19.3 - Prob. 2PECh. 19.3 - Prob. 3PECh. 19.3 - Prob. 1ECh. 19.3 - Prob. 2ECh. 19.3 - Prob. 3ECh. 19.3 - Prob. 4ECh. 19.3 - Prob. 5ECh. 19.3 - Prob. 6ECh. 19.3 - Prob. 7ECh. 19.3 - Prob. 8ECh. 19.3 - Prob. 9ECh. 19.3 - Prob. 10ECh. 19.3 - Prob. 11ECh. 19.3 - Prob. 12ECh. 19.3 - Prob. 13ECh. 19.3 - Prob. 14ECh. 19.3 - Prob. 15ECh. 19.3 - Prob. 16ECh. 19.3 - Prob. 17ECh. 19.3 - Prob. 18ECh. 19.3 - In Exercises 15–24, find the fractions equal to...Ch. 19.3 - In Exercises 15–24, find the fractions equal to...Ch. 19.3 - Prob. 21ECh. 19.3 - Prob. 22ECh. 19.3 - Prob. 23ECh. 19.3 - Prob. 24ECh. 19.3 - Prob. 25ECh. 19.3 - Prob. 26ECh. 19.3 - Prob. 27ECh. 19.3 - In Exercises 25–36, solve the given problems by...Ch. 19.3 - Prob. 29ECh. 19.3 - Prob. 30ECh. 19.3 - Prob. 31ECh. 19.3 - Prob. 32ECh. 19.3 - Prob. 33ECh. 19.3 - Prob. 34ECh. 19.3 - Prob. 35ECh. 19.3 - Prob. 36ECh. 19.4 - Prob. 1PECh. 19.4 - Prob. 2PECh. 19.4 - Prob. 3PECh. 19.4 - Prob. 4PECh. 19.4 - Prob. 1ECh. 19.4 - Prob. 2ECh. 19.4 - Prob. 3ECh. 19.4 - Prob. 4ECh. 19.4 - Prob. 5ECh. 19.4 - Prob. 6ECh. 19.4 - Prob. 7ECh. 19.4 - Prob. 8ECh. 19.4 - Prob. 9ECh. 19.4 - Prob. 10ECh. 19.4 - Prob. 11ECh. 19.4 - Prob. 12ECh. 19.4 - Prob. 13ECh. 19.4 - Prob. 14ECh. 19.4 - Prob. 15ECh. 19.4 - Prob. 16ECh. 19.4 - Prob. 17ECh. 19.4 - Prob. 18ECh. 19.4 - Prob. 19ECh. 19.4 - Prob. 20ECh. 19.4 - Prob. 21ECh. 19.4 - Prob. 22ECh. 19.4 - Prob. 23ECh. 19.4 - Prob. 24ECh. 19.4 - Prob. 25ECh. 19.4 - Prob. 26ECh. 19.4 - Prob. 27ECh. 19.4 - Prob. 28ECh. 19.4 - Prob. 29ECh. 19.4 - Prob. 30ECh. 19.4 - Prob. 31ECh. 19.4 - Prob. 32ECh. 19.4 - Prob. 33ECh. 19.4 - Prob. 34ECh. 19.4 - Prob. 35ECh. 19.4 - Prob. 36ECh. 19.4 - Prob. 37ECh. 19.4 - Prob. 38ECh. 19.4 - Prob. 39ECh. 19.4 - Prob. 40ECh. 19.4 - Prob. 41ECh. 19.4 - Prob. 42ECh. 19.4 - Prob. 43ECh. 19.4 - Prob. 44ECh. 19.4 - Prob. 45ECh. 19.4 - Prob. 46ECh. 19.4 - Prob. 47ECh. 19.4 - Prob. 48ECh. 19.4 - Prob. 49ECh. 19.4 - Prob. 50ECh. 19.4 - Prob. 51ECh. 19.4 - Prob. 52ECh. 19.4 - Prob. 53ECh. 19.4 - Prob. 54ECh. 19.4 - Prob. 55ECh. 19.4 - Prob. 56ECh. 19.4 - In Exercises 45–58, solve the given problems.
57....Ch. 19.4 - Prob. 58ECh. 19 - Prob. 1RECh. 19 - Prob. 2RECh. 19 - Prob. 3RECh. 19 - Prob. 4RECh. 19 - Prob. 5RECh. 19 - Prob. 6RECh. 19 - Prob. 7RECh. 19 - Prob. 8RECh. 19 - Prob. 9RECh. 19 - Prob. 10RECh. 19 - Prob. 11RECh. 19 - Prob. 12RECh. 19 - Prob. 13RECh. 19 - Prob. 14RECh. 19 - Prob. 15RECh. 19 - Prob. 16RECh. 19 - Prob. 17RECh. 19 - Prob. 18RECh. 19 - Prob. 19RECh. 19 - Prob. 20RECh. 19 - Prob. 21RECh. 19 - Prob. 22RECh. 19 - Prob. 23RECh. 19 - Prob. 24RECh. 19 - Prob. 25RECh. 19 - Prob. 26RECh. 19 - Prob. 27RECh. 19 - Prob. 28RECh. 19 - In Exercises 27–30, find the sums of the given...Ch. 19 - Prob. 30RECh. 19 - Prob. 31RECh. 19 - Prob. 32RECh. 19 - In Exercises 31–34, find the fractions equal to...Ch. 19 - Prob. 34RECh. 19 - Prob. 35RECh. 19 - Prob. 36RECh. 19 - Prob. 37RECh. 19 - Prob. 38RECh. 19 - Prob. 39RECh. 19 - Prob. 40RECh. 19 - Prob. 41RECh. 19 - Prob. 42RECh. 19 - Prob. 43RECh. 19 - Prob. 44RECh. 19 - Prob. 45RECh. 19 - Prob. 46RECh. 19 - Prob. 47RECh. 19 - Prob. 48RECh. 19 - Prob. 49RECh. 19 - Prob. 50RECh. 19 - Prob. 51RECh. 19 - Prob. 52RECh. 19 - Prob. 53RECh. 19 - Prob. 54RECh. 19 - Prob. 55RECh. 19 - Prob. 56RECh. 19 - Prob. 57RECh. 19 - Prob. 58RECh. 19 - Prob. 59RECh. 19 - Prob. 60RECh. 19 - Prob. 61RECh. 19 - Prob. 62RECh. 19 - Prob. 63RECh. 19 - Prob. 64RECh. 19 - Prob. 65RECh. 19 - Prob. 66RECh. 19 - Prob. 67RECh. 19 - Prob. 68RECh. 19 - In Exercises 51–98, solve the given problems by...Ch. 19 - Prob. 70RECh. 19 - Prob. 71RECh. 19 - Prob. 72RECh. 19 - Prob. 73RECh. 19 - Prob. 74RECh. 19 - Prob. 75RECh. 19 - Prob. 76RECh. 19 - Prob. 77RECh. 19 - Prob. 78RECh. 19 - Prob. 79RECh. 19 - Prob. 80RECh. 19 - In Exercises 51–98, solve the given problems by...Ch. 19 - Prob. 82RECh. 19 - Prob. 83RECh. 19 - Prob. 84RECh. 19 - Prob. 85RECh. 19 - Prob. 86RECh. 19 - Prob. 87RECh. 19 - Prob. 88RECh. 19 - In Exercises 51–98, solve the given problems by...Ch. 19 - Prob. 90RECh. 19 - Prob. 91RECh. 19 - Prob. 92RECh. 19 - Prob. 93RECh. 19 - Prob. 94RECh. 19 - Prob. 95RECh. 19 - Prob. 96RECh. 19 - Prob. 97RECh. 19 - Prob. 98RECh. 19 - Prob. 99RECh. 19 - Prob. 1PTCh. 19 - Prob. 2PTCh. 19 - Prob. 3PTCh. 19 - Prob. 4PTCh. 19 - Prob. 5PTCh. 19 - Prob. 6PTCh. 19 - Prob. 7PTCh. 19 - Prob. 8PTCh. 19 - Prob. 9PT
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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. c. What is the probability that a person…arrow_forwardIn Gallup's Annual Consumption Habits Poll, telephone interviews were conducted for a random sample of 1014 adults aged 18 and over. One of the questions was "How many cups of coffee, if any, do you drink on an average day?" The following table shows the results obtained (Gallup website, August 6, 2012). Excel File: data05-23.xls Number of Cups per Day Number of Responses 0 365 264 193 3 4 or more 91 101 Define a random variable x = number of cups of coffee consumed on an average day. Let x = 4 represent four or more cups. Round your answers to four decimal places. a. Develop a probability distribution for x. x 0 1 2 3 4 f(x) b. Compute the expected value of x. cups of coffee c. Compute the variance of x. cups of coffee squared d. Suppose we are only interested in adults that drink at least one cup of coffee on an average day. For this group, let y = the number of cups of coffee consumed on an average day. Compute the expected value of y. Compare it to the expected value of x. The…arrow_forwardrounded to two decimal places at each calculationarrow_forward
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