Chapter 2.1, Problem 40E

(a)

To determine

To construct: the appropriate graph on the basis of given data.

Explanation of Solution

Given:

Calculation:

Table for the Response and frequency

Response	Frequency
R	44
L	3
A	3
Total	50

Graph:

By seeing the graph, it is observed that the most of the population is Right-handed and only few populations are left-handed and ambidextrous. The variable is categorical, although the categories are Right, Left and Ambidextrous. So select to create a bar graph.

(b)

To determine

To find: the percent of the population would calculate is left-handed.

Answer to Problem 40E

6%

Explanation of Solution

Given:

Calculation:

Total population =50

Left-handed = 3

  $\begin{array}{c}\frac{3}{50}=0.06\\ =6\%\end{array}$

There is 6% left handed population. It is expected that the same proportion to hold for the entire population