Chapter 2, Problem 2.1LB

a.

To determine

The percentage of values in each category.

Explanation of Solution

Given:

Category	Frequency
A	13
B	28
C	9

Calculation:

The percentage of values in each category can be computed as:

Category	Frequency	Percentage
A	13	$\frac{13}{50}\times 100=26\%$
B	28	$\frac{28}{50}\times 100=56\%$
C	9	$\frac{9}{50}\times 100=18\%$
Total	50

b.

To determine

To explain: The conclusion that is drawn for the categories.

Explanation of Solution

From above part, it is known the percentage of category B is highest among the categories A and C. It means that the value of category B is more than the other categories. This category is accounting approx. 56% to the variable.