The relationship between a fathers age and the number of children he has is studied. The...
The relationship between a fathers age and the number of
children he has is studied. The data are shown below. what is the
correlation coeffieicent? Carry to 3 decimal places
Father age--- 19--- 21-- 27-- 20-- 25-- 31-- 32-- 38
# of children- 1----- 2----3--- 0---- 1--- 4--- 3--- 4
Homework Answers
| X | Y | X⋅Y | X⋅X | Y⋅Y |
| 19 | 1 | 19 | 361 | 1 |
| 21 | 2 | 42 | 441 | 4 |
| 27 | 3 | 81 | 729 | 9 |
| 20 | 0 | 0 | 400 | 0 |
| 25 | 1 | 25 | 625 | 1 |
| 31 | 4 | 124 | 961 | 16 |
| 32 | 3 | 96 | 1024 | 9 |
| 38 | 4 | 152 | 1444 | 16 |
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x=Father age
y=number of children
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The relationship between a fathers age and the number of
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