Use the Graph to Answer the Question

question 5

Short Answer

Use the graph to answer the question.
-The local police, using radar, checked the speeds (in mph) of 30 motorists in a construction area. The results are listed below. Construct a frequency bar graph and a relative frequency bar graph. $$\begin{array} { l l l l l l l l l l } 44 & 38 & 41 & 50 & 36 & 36 & 43 & 42 & 49 & 48 \\35 & 40 & 37 & 41 & 43 & 50 & 45 & 45 & 39 & 38 \\50 & 41 & 47 & 36 & 35 & 40 & 42 & 43 & 48 & 33\end{array}$$

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Definitions:

Field Research

A method of collecting data through first-hand observation or interaction within a natural setting outside the laboratory or office.

Probability Sample

A probability sample is a sampling technique in which each member of the population has a known and equal chance of being selected, ensuring that the sample represents the larger population.

Secondary Data Analysis

The process of analyzing data that was collected by someone else, for a purpose other than the current research interest.

Online Surveys

A method of collecting data or feedback from a wide audience via the internet.