Find the Midrange for the Given Sample Data $\begin{array} { l l l l l } 7.1 & 6.8 & 7.1 & 7.2 & 7.8 \end{array}$

question 69

Multiple Choice

Find the midrange for the given sample data.
-Bill kept track of the number of hours he spent exercising each week. The results for 15 weeks are shown below. Find the midrange. $\begin{array} { l l l l l } 7.1 & 6.8 & 7.1 & 7.2 & 7.8 \end{array}$
$\begin{array} { l l l l l l } 7.9 & 6.5 & 8.4 & 8.5 & 7.2 \end{array}$
$\begin{array} { l l l l l } 8.5 & 6.8 & 7.9 & 9.0 & 7.8 \end{array}$

• A) 7.75 hr
• B) 7.8 hr
• C) 7.50 hr
• D) 2.5 hr

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Definitions:

Freshmen

Students in their first year of study in a secondary or post-secondary educational institution.

Significant Change

A measurable difference in data or results that surpasses the threshold of statistical significance, indicating that it is unlikely to have occurred by chance.

Expected Number

The value predicted for a random variable, taking into account all possible values it can take weighted by their respective probability of occurrence.

Test Statistic

A calculated value from sample data used to decide whether to reject the null hypothesis in statistical hypothesis testing.