Chapter 11.1, Problem 14E

a.

To determine

To make: an ordered stem-and-leaf plot of the data.

Explanation of Solution

Given information:

  $15,17,9,22,19,21,20,25,11,12,9,20,17$

Calculation:to find the ordered stem-and-leaf plot of the data write the stem first. Then record each distance by writing its ones’ digit on the same line as its corresponding stem.

Ordered stem-and-leaf plot

  $\begin{array}{l}0\text{ 9 9 }\\ 1\text{ 1 2 5 7 7 9 }\\ 2\text{ 0 0 2 5}\end{array}$

b.

To determine

To find: the median of the data.

Answer to Problem 14E

Median = $\text{17}$

Range of the data = $\text{0-30}$

Explanation of Solution

Given information:

  $15,17,9,22,19,21,20,25,11,12,9,20,17$

Calculation: For median first arrange the data in ascending order then the mid term will be the median,

  $\text{9,9,11,12,15,17,17,19,20,20,21,22,25}$

Median = $\text{17}$

Range of the data = $\text{0-30}$

c.

To determine

To compare: thecanary with the others if the canary weight is 18 gram.

Answer to Problem 14E

Canary weight is higher from the average weight of the others.

Explanation of Solution

Given information:

  $15,17,9,22,19,21,20,25,11,12,9,20,17$

Calculation: Canary weighs of 18 grams will be comes after the median of the data.

So its weight will be the higher from the average weight of the others.