Illustration 9.33. The following data represent travel expenses('her than transportation) for 7 trips made during November by asaicsman of a small firm. TripDaysExpenseЕxpenseper dayRs.Rs10.513.5027.002.012,006.003.517.505.0041.09.009.0059.027.003.0018,002.000,59.008.517.00Total25.0105.0070.00An auditor crițicized these expenses as excessive, asserting that theaverage expense per day is Rs 10 (Rs 70 divided by 7). The salesmanreplied that the average is only Rs 4.20 (Rs 105 divided by 25) andthat in any event the median is the appropriate measure and is onlyRs 3.00. The auditor rejoined that the arithmetic mean is theappropriate measure, but the median is Rs 6.00.1. Explain the proper interpretation of each of the four averagesmentioned.2. Which average seems to you appropriate?67

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Answered: llustration 9.33. The following data…

llustration 9.33. The following data represent travel expenses ( 'her than transportation) for 7 trips made during November by a saicsman of a small firm.

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter2: Functions

Section2.4: Average Rate Of Change Of A Function

Problem 1E: If you travel 100 miles in two hours, then your average speed for the trip is Average...

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Question

Illustration 9.33. The following data represent travel expenses
('her than transportation) for 7 trips made during November by a
saicsman of a small firm.

Trip
Days
Expense
Еxpense
per day
Rs.
Rs
1
0.5
13.50
27.00
2.0
12,00
6.00
3.5
17.50
5.00
4
1.0
9.00
9.00
5
9.0
27.00
3.00
18,00
2.00
0,5
9.00
8.5
17.00
Total
25.0
105.00
70.00
An auditor crițicized these expenses as excessive, asserting that the
average expense per day is Rs 10 (Rs 70 divided by 7). The salesman
replied that the average is only Rs 4.20 (Rs 105 divided by 25) and
that in any event the median is the appropriate measure and is only
Rs 3.00. The auditor rejoined that the arithmetic mean is the
appropriate measure, but the median is Rs 6.00.
1. Explain the proper interpretation of each of the four averages
mentioned.
2. Which average seems to you appropriate?
67

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