Construct a Scatterplot and Identify the Mathematical Model That Best $\mathrm { R } ^ { 2 }$

question 49

Essay

Construct a scatterplot and identify the mathematical model that best fits the data. Assume that the model is to be used
only for the scope of the given data and consider only linear, quadratic, logarithmic, exponential, and power models. Use
a calculator or computer to obtain the regression equation of the model that best fits the data. You may need to fit several
models and compare the values of $\mathrm { R } ^ { 2 }$
-The sum of squares of residuals $\sum ( \mathrm { y } - \hat { \mathrm { y } } ) ^ { 2 }$ can be used to assess the quality of a regression model. A residual is
the difference between an observed y value and the value of y predicted from the model, $\hat { y }$ . The better the
model, the smaller the sum of squares of residuals. For the data below find the sum of squares of residuals
which results from fitting a linear model, and the sum of squares of residuals which results from fitting a power
model. Which model fits better? How can you tell? $\begin{array} { c | c c c c c } x & 1 & 2 & 3 & 4 & 5 \\\hline y & 3 & 9 & 17 & 30 & 40\end{array}$

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Definitions:

Context-dependent Memory

Context-dependent memory refers to the improved recall of specific information when the context present at encoding and retrieval of the information is the same.

Memory Reconsolidation

The process by which previously consolidated memories are recalled and then stored again for long-term memory.

Negative Memories

Recollections of past events that evoke negative emotions.

Context-dependent Memory

The phenomenon whereby information is more easily recalled when the context present at encoding and retrieval is the same.