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Question
lara collects data on books at the library. she records the number of times a book has been checked out and the number of months the book has been in circulation at the library. her data are shown in the table.
| number of times checked out | number of months in circulation |
|---|---|
| 8 | 9 |
| 3 | 4 |
| 2 | 3 |
| 6 | 7 |
| 3 | 5 |
| 5 | 7 |
a. use the add point tool to create a scatter - plot of the data.
b. select all of the properties that
Step1: Understand scatter - plot concept
A scatter - plot is used to show the relationship between two variables. Here, the two variables are the number of times a book is checked out (x - variable) and the number of months in circulation (y - variable).
Step2: Analyze the data trend
As the number of times a book is checked out increases (x - values: 2, 3, 4, 5, 6, 8), the number of months in circulation also tends to increase (y - values: 3, 4, 5, 7, 7, 9). This indicates a positive association.
Step3: Determine linearity
The points seem to roughly follow a straight - line pattern, so there is a linear association.
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A. (Since this is not possible to actually create a scatter - plot in this text format, but the points to be plotted are (4,5), (8,9), (3,4), (2,3), (6,7), (3,5), (5,7))
B. Positive Association, Linear Association