Solution

 (b) $\text{Categorical/qualitative}$ variables places the individuals into a category, while a 

$\textbf{quantitative}$ variable is a numerical variable.

The variable is the reason for not wanting to be president, which does not take on numerical values and thus the variable is qualitative.

Both a pie chart and a bar chart can be used to represent qualitative data, thus either graph can be used.

(d) Other possible types of questions that you might want to investigate:

$\bullet$ Do you want to be the president? (such that we can determine what proportion of the people actually want to be the president)

$\bullet$ Do you think you could become the president?

$\bullet$ What are the most important characteristics of a president?

$\bullet$ What characteristics and/or qualification should you have to become president?

Answer

(a) No, add the category "Other" with percent 6%

(b) Either graph can be used.

(c) Pie chart: The slice size (central angle of the circle) is the product of 360$\text{\textdegree}$ and the percent. Draw a circle. Draw the slices for each category using the determined slice sizes.

Bar graph: The width of each bar has to be the same and the height has to be equal to the percent.

(d) For example: Do you want to be the president?

$\textbf{Categorical/qualitative}$

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