Displaying Data

The horizontal axis of this graph is based on class midpoints

• Frequency Polygon
• Histogram
• Bar Graph
• Ogive

This is the observed relationship between two quantities in a data set.

• Correlation
• Summation
• Measure
• Mean

This is a special type of bar graph where the bars are displayed in descending order

• Pareto Chart
• Scatter Plot
• Dot Plot
• Stem-and-Leaf Plot

To find the sections of a pie chart you would multiply the _____________ (proportion) of the category by 360.

• Frequency
• Relative Frequency
• Cumulative Frequency
• Midpoint

Which of the following is the correct formula to find the midpoint ( x ) of a class [ a, b )?

• x=(a+b)/2
• x=(a-b)/2
• x=(b-a)/2
• x=a+b/2

If a data set had a minimum of 20 and a maximum of 100, and 8 classes were desired, what must the class width be, if the classes are made using set-interval notation?

• 11
• 10
• 8
• 40

Review: Which level of measurement allows you to say that one data point is greater than or less than another, but not by how much?

• Ordinal
• Nominal
• Interval
• Ratio

A Time Series graph is a lot like a Scatter Plot, except that...

• The points are connected with a line
• The vertical axis is cumulative frequency
• The bars touch
• The horizontal axis can't have a broken-axis symbol

A Histogram looks a lot like a Bar Graph, except...

• The bars touch
• The bars don't touch
• The vertical axis is cumulative frequency
• You can put a broken-axis symbol on the vertical axis

This column is sometimes included in a data table, but only for organizational purposes. It is not displayed in the final version.

• Tally
• Frequency
• Midpoint
• Relative Frequency