Draw Dot Plots
-The Local Police, Using Radar, Checked the Speeds

question 7

Short Answer

Draw Dot Plots
-The local police, using radar, checked the speeds (in mph) of 30 motorists at a busy intersection. The results are listed below. Construct a dot plot for the data. $\begin{array}{llllllllll}44 & 38 & 41 & 50 & 36 & 36 & 43 & 42 & 49 & 48 \\35 & 40 & 37 & 41 & 43 & 50 & 45 & 45 & 39 & 38 \\50 & 41 & 47 & 36 & 35 & 40 & 42 & 43 & 48 & 33\end{array}$

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Definitions:

External Validity

The extent to which the results of a study can be generalized or applied to situations outside the original experimental setting.

Representative

Someone or something that serves as a typical example or is characteristic of a group, class, or set.

Demand Characteristics

Aspects of an experimental setting that lead participants to guess the purpose of the study and adjust their behavior to what they think the experiment demands.

Inadvertently Smiles

Smiling unintentionally or without conscious decision, often as a natural reaction to certain stimuli or thoughts.