9. The following table gives the distribution of items of production and also the relatively defective items among them, according to size groups. Find the correlation coefficient between size and defect in quality and its probable error. Size-group 15-16 16-17 17-18 18-19 19-20 20-21 No. of items 200 270 340 : 360 400 300 No. of defective items 150 162 170 180 : 180 114
9. The following table gives the distribution of items of production and also the relatively defective items among them, according to size groups. Find the correlation coefficient between size and defect in quality and its probable error. Size-group 15-16 16-17 17-18 18-19 19-20 20-21 No. of items 200 270 340 : 360 400 300 No. of defective items 150 162 170 180 : 180 114
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 1CYU
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