Draw Stem-And-Leaf Plots
-The March Utility Bills (In Dollars) of 30

question 68

Short Answer

Draw Stem-and-Leaf Plots
-The March utility bills (in dollars) of 30 homeowners are listed below. Construct a stem-and-leaf plot for the data. $$\begin{array} { l l l l l l l l l l } 44 & 38 & 41 & 50 & 36 & 36 & 43 & 42 & 49 & 48 \\35 & 40 & 37 & 41 & 43 & 50 & 45 & 45 & 39 & 38 \\50 & 41 & 47 & 36 & 35 & 40 & 42 & 43 & 48 & 33\end{array}$$

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Definitions:

R-Square Value

A statistical measure of how close the data is to the fitted regression line, also known as the coefficient of determination.

Total Variation

The overall measure of variability or spread in a dataset or the sum of explained and unexplained variation in a model.

Independent Variable

A variable in research or experiments that is manipulated or controlled by the researcher to observe its effect on the dependent variable.

Significance Level

The threshold below which a p-value is considered statistically significant, commonly set at 0.05.