Consider the Data Given in the Table Below A Plot the Data on a Scattergram

question 87

Essay

Consider the data given in the table below. $\begin{array}{cc}\hline \mathrm{X} & \mathrm{Y} \\\hline 1 & 4 \\2 & 6 \\2 & 5 \\3 & 7 \\4 & 7 \\4 & 6 \\5 & 4 \\5 & 5 \\6 & 3 \\\hline\end{array}$

a. Plot the data on a scattergram. Does a quadratic model seem to be a good fit for the data? Explain.
b. Use the method of least squares to find a quadratic prediction equation.
c. Graph the prediction equation on your scattergram.

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Definitions:

Good

A tangible product or item that satisfies some human desire or need, often available for sale in the market.

Tax Revenue

Government income collected from citizens and businesses through imposed levies and duties.

Tax

A mandatory financial charge or some other type of levy imposed upon a taxpayer by a governmental organization in order to fund government spending and various public expenditures.

Good

An item or service that fulfills a consumer's want or need, which can be tangible, like a car, or intangible, like a service provided by a dentist.