(9. The following table gives the distribution of items of production and also h rufativety defective items among them, according to size groups. Find the correlation coefficient between size and defect in quality and its probable error. 18-19 Size-group 15-16 16-17 17-18 19-20 20-21 : No. of items 200 270 340 360 400 300 180 No. of defective items : 180 ban 150 162 170 114

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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9. The following table gives the distribution of items of production and also the
rufativety defective items among them, according to size groups. Find the correlation
coefficient between size and defect in quality and its probable error.
18-19
Size-group
17-18
19-20
20-21
15-16
16-17
No. of items
200
270
340
360
400
300
:
No. of defective items
150
162
170
180
180
114
:
Transcribed Image Text:9. The following table gives the distribution of items of production and also the rufativety defective items among them, according to size groups. Find the correlation coefficient between size and defect in quality and its probable error. 18-19 Size-group 17-18 19-20 20-21 15-16 16-17 No. of items 200 270 340 360 400 300 : No. of defective items 150 162 170 180 180 114 :
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