Use the table to create a scatterplot. Determine the type of association.

This table presents the x and y values required to create scatter plots and determine the type of association.
x
25 30 80 150 250 350 425 450 500
y
375 225 120 75 50 100 175 275 400


(1 point)
Responses

linear association
linear association

negative linear association
negative linear association

non-linear association
non-linear association

no association
no association

1 answer

To analyze the association between the given \(x\) and \(y\) values, we can look at the relationship between the two sets of data:

Here's the data from the table:

\[ \begin{array}{|c|c|} \hline x & y \ \hline 25 & 375 \ 30 & 225 \ 80 & 120 \ 150 & 75 \ 250 & 50 \ 350 & 100 \ 425 & 175 \ 450 & 275 \ 500 & 400 \ \hline \end{array} \]

Steps to Determine the Association:

  1. Plot the Points: We would plot the points on a graph where the x-values are on the horizontal axis and the y-values are on the vertical axis.

  2. Visual Inspection: As we plot the points, we observe how they trend with respect to each other.

  3. Analyze the Trend:

    • For smaller values of \(x\) (from 25 to about 250), \(y\) decreases significantly from 375 to 50.
    • As we increase \(x\) from 250 to 500, \(y\) starts to increase again but does not return to higher values than it started.

Type of Association:

  • Negative Linear Association: The initial trend shows that as \(x\) increases, \(y\) initially decreases, suggesting a negative relationship. Although it doesn't remain consistently negative throughout (as it begins to rise again towards the extreme values), the overall behavior suggests that there is a dominating negative trend in the early segment of the scatterplot.

Given this analysis, the type of association that best characterizes the relationship between \(x\) and \(y\) is:

Negative Linear Association.