Find answers to your most challenging questions with the help of IDNLearn.com's experts. Our platform is designed to provide trustworthy and thorough answers to any questions you may have.

Consider the table showing the given, predicted, and residual values for a data set.

\begin{tabular}{|c|c|c|c|}
\hline
[tex]$x$[/tex] & Given & Predicted & Residual \\
\hline
1 & -1.6 & -1.2 & -0.4 \\
\hline
2 & 2.2 & 1.5 & 0.7 \\
\hline
3 & 4.5 & 4.7 & -0.2 \\
\hline
4 & 6.1 & 6.7 & -0.6 \\
\hline
\end{tabular}

Which point would be on the residual plot of the data?

A. [tex]$(1, -0.4)$[/tex]
B. [tex]$(2, 0.7)$[/tex]
C. [tex]$(3, -0.2)$[/tex]
D. [tex]$(4, -0.6)$[/tex]


Sagot :

To determine which point from the provided table would be on the residual plot, we need to understand what a residual plot represents. A residual plot shows the residuals (i.e., errors between the given values and the predicted values) on the y-axis versus the corresponding [tex]\( x \)[/tex]-values on the x-axis.

The table given is:
[tex]\[ \begin{tabular}{|c|c|c|c|} \hline x & Given & Predicted & Residual \\ \hline 1 & -1.6 & -1.2 & -0.4 \\ \hline 2 & 2.2 & 1.5 & 0.7 \\ \hline 3 & 4.5 & 4.7 & -0.2 \\ \hline 4 & 6.1 & 6.7 & -0.6 \\ \hline \end{tabular} \][/tex]

We consider the residual plot points as [tex]\((x, \text{residual})\)[/tex]:

- For [tex]\( x = 1 \)[/tex], the residual is [tex]\(-0.4\)[/tex], so the point is (1, -0.4).
- For [tex]\( x = 2 \)[/tex], the residual is [tex]\( 0.7 \)[/tex], so the point is (2, 0.7).
- For [tex]\( x = 3 \)[/tex], the residual is [tex]\(-0.2\)[/tex], so the point is (3, -0.2).
- For [tex]\( x = 4 \)[/tex], the residual is [tex]\(-0.6\)[/tex], so the point is (4, -0.6).

Now we match these points with the provided options:
- (1, -1.6)
- (2, 1.5)
- (3, 4.5)
- (4, -0.6)

After examining the options, the correct point that appears on the residual plot is [tex]\((4, -0.6)\)[/tex].

Therefore, the point that would be on the residual plot of the data is [tex]\((4, -0.6)\)[/tex].
Your engagement is important to us. Keep sharing your knowledge and experiences. Let's create a learning environment that is both enjoyable and beneficial. Your search for solutions ends at IDNLearn.com. Thank you for visiting, and we look forward to helping you again.