X 24 6 16 64 10 25 35 EX=180 Y 21 3 6 15 21 61 20 EY=147 XY 504 EXY = X² 576 Y² 441 [Y²=

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.1: Systems Of Equations
Problem 49E
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EXAMPLE:
A soft drink distributor is interested to find out if the number of cases of
soft drinks ordered is related to the travel time they are delivered. The
following data have been obtained from past experience.
Number of Cases of Soft Drinks (X)
Travel Time in Minutes (Y)
24
21
6
3
16
6
64
15
10
21
25
61
35
20
X
Y
24 21
6
3
16
6
64
15
10
21
25
61
35
20
EX=180 EY=147
XY
504
ΣΧΥ =
X²
576
y²
441
[Y²=
Transcribed Image Text:EXAMPLE: A soft drink distributor is interested to find out if the number of cases of soft drinks ordered is related to the travel time they are delivered. The following data have been obtained from past experience. Number of Cases of Soft Drinks (X) Travel Time in Minutes (Y) 24 21 6 3 16 6 64 15 10 21 25 61 35 20 X Y 24 21 6 3 16 6 64 15 10 21 25 61 35 20 EX=180 EY=147 XY 504 ΣΧΥ = X² 576 y² 441 [Y²=
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