Totals: No. of Workers No. of Units Produced Y 120 180 220 224 176 320 270 275 1785 X 10 12 14 16 13 20 18 17 120 XY 1200 2160 3080 3584 2288 6400 4860 4675 28247 X² 100 144 196 256 169 400 324 289 1878 y² 14400 32400 48400 50176 30976 102400 72900 75625 427277

Totals: No. of Workers No. of Units Produced Y 120 180 220 224 176 320 270 275 1785 X 10 12 14 16 13 20 18 17 120 XY 1200 2160 3080 3584 2288 6400 4860 4675 28247 X² 100 144 196 256 169 400 324 289 1878 y² 14400 32400 48400 50176 30976 102400 72900 75625 427277

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

The head of the production department of FPDJ Electronic Company wants to determine the relationship between the number of workers who assemble a particular electronic gadget and the number of units of that product assembled per day. Referring to the table below, what is the coefficient of correlation

Totals:
No. of Workers No. of Units Produced
Y
120
180
220
224
176
320
270
275
1785
X
10
12
14
16
13
20
18
17
120
XY
1200
2160
3080
3584
2288
6400
4860
4675
28247
X²
100
144
196
256
169
400
324
289
1878
y²
14400
32400
48400
50176
30976
102400
72900
75625
427277

Definition Definition Relationship between two independent variables. A correlation tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

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