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Questions and Answers

What is the main difference between a bar graph and a histogram?

There is no natural separation between rectangles of adjacent classes (correct)

There is a natural separation between rectangles of adjacent classes

The height of the rectangle corresponds to the interval's frequency

The variable of interest is placed on the vertical axis

What type of graph is used to illustrate the relationship between two variables?

Pictogram

Scatter plot (correct)

Bar diagram

Pie chart

What type of data is displayed on a histogram?

Quantitative data (correct)

Nominal data

Qualitative data

Ordinal data

What is the purpose of a scatter plot?

To illustrate the relationship between two variables Signup and view all the answers

What is the characteristic of a histogram that distinguishes it from a bar graph?

The rectangles are adjacent to each other Signup and view all the answers

What type of relationships can be illustrated by a scatter plot?

Positive or negative relationships, and non-linear patterns Signup and view all the answers

Study Notes

Data Scale Graph/Diagram

Types of data:
Qualitative: Nominal, Ordinal
Quantitative: Interval (Scale), Ratio (Scale)

Types of Graphs/Diagrams

Bar Diagram: used for qualitative data
Pie Chart: used for qualitative data
Pictogram Map Diagram/Spot Map: used for qualitative data
Histogram: used for quantitative data, with no natural separation between rectangles of adjacent classes
Frequency Polygon/Curve Line: used for quantitative data
Scatter Diagram: used to show relationships between variables

Histogram

A graphical presentation of quantitative data
Horizontal axis: variable of interest
Rectangles drawn above each class interval with heights corresponding to frequency, relative frequency, or percent frequency

Scatter Plots

Used to reveal relationships between variables
Patterns that can be illustrated:
Data correlation
Positive or direct relationships between variables
Negative or inverse relationships between variables
Scattered data points
Non-linear patterns

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Description

This quiz covers different types of graphs and diagrams used to represent qualitative and quantitative data, including bar diagrams, pie charts, and histograms.