Chapter 3

Question 1

What is a comparative bar chart?

Answer 1

When a bar chart shows more than one bar per each x value. Bars are next to each other and touching.

Question 2

Define pie chart.

Answer 2

Circle represents the whole data set.

Question 3

How do you calculate to angle of the slice?

Answer 3

360(category’s relative frequency)= slice size

Question 4

What are pie charts most useful for?

Answer 4

Illustrating proportions(parts) of a whole data set.

Question 5

How do you start to figure out the slice sizes?

Answer 5

With the smallest category of the data set.

Question 6

What is a segmented bar chart?

Answer 6

Wen a bar chart consists of one bar, and is divided into the different sections of the data set. The bar shows the total of one

Question 7

Define stem.

Answer 7

The first part of the number.
Ex. 150
1 is the stem

Question 8

Define leaf.

Answer 8

The last part of the number.
Ex. 12
2 is the leaf.

Question 9

What is a comparative stem plot?

Answer 9

When the leaves for one group extend from one side of the stem, and the leaves for another group extend from the other side of the stem.