The Highway Patrol, Using Radar, Checked the Speeds (In Mph)of

question 67

Essay

The Highway Patrol, using radar, checked the speeds (in mph)of 30 passing motorists at a checkpoint. The results are
listed below. $$\begin{array} { l l l l l l l l l l } 44 & 38 & 41 & 50 & 36 & 36 & 43 & 42 & 49 & 48 \\35 & 40 & 37 & 41 & 43 & 50 & 45 & 45 & 39 & 38 \\50 & 41 & 47 & 36 & 35 & 40 & 42 & 43 & 48 & 33\end{array}$$
-Construct a frequency histogram, a relative frequency histogram and a frequency polygon using six classes.

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Definitions:

Parameter

A numerical characteristic of a statistical population, such as mean or standard deviation, that describes an aspect of the population.

Statistic

A numerical characteristic derived from a sample, used to estimate aspects of a population.

Registered Voters

Registered Voters are individuals who are officially registered to vote in elections, typically a subset of the eligible voting population.

Parameter

A numerical characteristic that describes a statistical population, such as a mean or standard deviation.