The data in the tables below, comprises of the number of hours (X) studied and the exam grade (Y) obtained for 6 first year students registered at UWC. Calculate the slope (rounded off to four decimals). X 2 5 1 2 3 3 Y (%) 60 85 73 80 90 87 SSxy = 42.33 SSx = 9.33 SSy = 618.83 = 2.6667 = 79.1667 b = 4.53567
The data in the tables below, comprises of the number of hours (X) studied and the exam grade (Y) obtained for 6 first year students registered at UWC. Calculate the slope (rounded off to four decimals). X 2 5 1 2 3 3 Y (%) 60 85 73 80 90 87 SSxy = 42.33 SSx = 9.33 SSy = 618.83 = 2.6667 = 79.1667 b = 4.53567
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
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Chapter4: Polynomial And Rational Functions
Section4.6: Rational Functions
Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.
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The data in the tables below, comprises of the number of hours (X) studied and the exam grade (Y) obtained for 6 first year students registered at UWC. Calculate the slope (rounded off to four decimals).
|
X |
2 |
5 |
1 |
2 |
3 |
3 |
|
Y (%) |
60 |
85 |
73 |
80 |
90 |
87 |
|
SSxy = 42.33 |
SSx = 9.33 |
SSy = 618.83 |
= 2.6667 |
= 79.1667 |
|
b = 4.53567 |
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