em1203

A graph that displays the data by using contiguous vertical bars (unless the frequency of a class is 0) of various heights to represent the frequencies of the classes.

• Histogram

• Frequency Polygon

• Pie Chart

• Cumulative Frequency

A graph that displays the data by using lines that connect points plotted for the frequencies at the midpoints of the classes.

• Histogram

• Frequency Polygon

• Pie Chart

• Cumulative Frequency

In the construction of a frequency distribution, it is a good idea to have overlapping class limits, such as 10–20, 20–30, 30–40.

• True

• False

Histograms can be drawn by using vertical or horizontal bars.

• True

• False

It is not important to keep the width of each class the same in a frequency distribution.

• True

• False

Frequency distributions can aid the researcher in drawing charts and graphs.

• True

• False

In construction of a frequency polygon, the class limits are used for the x axis.

• True

• False

What is another name for the ogive?

• Histogram

• Frequency Polygon

• Cumulative frequency graph

• Pareto Chart

What are the boundaries for 8.6-8.8

• 8-9

• 8.5-8.9

• 8.55-8.85

• 8.65-8.75

In a frequency distribution, the number of classes should be between

• 5 and 20

• 1 and 5

• 10 and 20