Chapter SR31, Problem 3P

Solution

Find the mean, median, mode(s), and range of the data.

Mean $=685$

Median $=713$

Mode $=no\mathrm{mod}e$

Range $=611$

Given:

Monthly cell-phone minutes: $581,713,423,852,948,337,810,604,897$

Concept used:

• Mean is the sum of the values divided by the number of values.
• Median is the middle value of your data set when in order from least to greatest.
• The mode is the number that occurred the most often.
• The range is the difference between the highest and lowest values

Calculation:

Monthly cell-phone minutes: $581,713,423,852,948,337,810,604,897$

Mean $=\frac{sumofallvalues}{no.ofvalues}$

  $\begin{array}{l}=\frac{581+713+423+852+948+337+810+604+897}{9}\\ =\frac{6165}{9}\\ =685\end{array}$

Mean $=685$

Median $=middlevalueofyourdatasetwheninorderfromleasttogreatest$

Least to greatest order = $337,423,581,604,713,810,852,897,948,$

Median $=713$

Mode $=datathatoccursmost$

Mode $=no\mathrm{mod}e$

Range $=Highestvalue-LowestValue$

  $\begin{array}{l}=948-337\\ =611\end{array}$

Range $=611$