The three-period moving average for the third quarter of 2012 (rounded off to two decimals) is:    A.  115.75  B.  131.00  C.  123.66  D.  124.67

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Question

The following information has been supplied by the Sales department of an IT company in Dublin (sales are in units).

 

Year

Period

Sales

2010

Q1

100

 

Q2

125

 

Q3

127

 

Q4

102

2011

Q1

104

 

Q2

128

 

Q3

130

 

Q4

107

2012

Q1

110

 

Q2

131

 

Q3

133

 

Q4

107

2013

Q1

109

 

Q2

132

 

Q3

135

 

Q4

105

 

The three-period moving average for the third quarter of 2012 (rounded off to two decimals) is:

 
  •  A. 

    115.75

  •  B. 

    131.00

  •  C. 

    123.66

  •  D. 

    124.67

 

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