The Following Frequency Distribution Presents the Weights in Pounds (Lb)

question 47

Multiple Choice

The following frequency distribution presents the weights in pounds (lb) of a sample of visitors to a health clinic.
$\begin{array}{cc}\hline {\text { Clinic Visitor Weights }} \\\hline \text { Weight (lb) } & \text { Frequency } \\\hline 120-129 & 4 \\130-139 & 13 \\140-149 & 23 \\150-159 & 42 \\160-169 & 32 \\170-179 & 24 \\180-189 & 9 \\190-199 & 3 \\\hline\end{array}$

Construct a relative frequency histogram.

---

Definitions:

Stepwise Regression

A method of fitting regression models in which the choice of predictive variables is carried out by an automatic procedure.

F-statistic

A ratio used in statistical analysis to determine the significance of a group of variables in a regression model.

F-to-enter

A criterion used in statistical analysis to decide when a variable should be added to a regression model based on the F-statistic value.

Multiple Regression Analysis

A statistical strategy that employs a selection of explanatory variables to predict the outcome of a variable of interest.