(1) Let x be the age in years of a licensed automobile driver. Let y be the percentage of all fatal accidents (for a given age) due to speeding. For example, the first data pair indicates that 33% of all fatal accidents of 17-year-olds are due to speeding.
x | 17 | 27 | 37 | 47 | 57 | 67 | 77 |
y | 33 | 28 | 22 | 12 | 10 | 7 | 5 |
Complete parts (a) through (e), given
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Σx | = | |
Σy | = | |
Σx^{2} | = | |
Σy^{2} | = | |
Σxy | = | |
r | = |
x | = | |
y | = | |
= | + x |
r^{2} = | |
explained | % |
unexplained | % |
x | 37 | 47 | 57 | 67 | 77 | 87 |
y | 5 | 8 | 10 | 15 | 27 | 44 |
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Σx = | |
Σy = | |
Σx^{2} = | |
Σy^{2} = | |
Σxy = | |
r = |
x | = | |
y | = | |
= | + x |
r^{2} = | |
explained | % |
unexplained | % |
x | 8.2 | 9.2 | 10.2 | 8.0 | 8.3 | 8.7 |
y | 9.9 | 18.2 | 21.0 | 10.2 | 11.4 | 13.1 |
Flash Player version 10 or higher is required for this question.
You can get Flash Player free from Adobe's website.
Σx = | |
Σy = | |
Σx^{2} = | |
Σy^{2} = | |
Σxy = | |
r = |
x | = | |
y | = | |
= | + x |
r^{2} = | |
explained | % |
unexplained | % |
Hello. Since you have posted multiple questions and not specified which question needs to be solved, we will solve the first three sub-parts of the first question for you. If you want any other specific question to be solved then please resubmit only that question or specify the question number.
(a)
The scatter diagram for the provided data can be plotted using Excel.
The steps are given below:
The scatterplot is shown below:
(b)
The calculations are...
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