1. Introductory Statistics: Exploring the World through Data, 1e
Active Learning Lecture Slides
For use with Classroom Response Systems
Introductory Statistics:
Exploring the World through Data, 1e
by Gould and Ryan
Chapter 2: Redaing Quiz 3 sections
© 2013 Pearson Education, Inc.

2. © 2013 Pearson Education, Inc.
True or False The distribution of a sample of data organizes data by recording all of the values observed and how many times each value is observed.
True
False
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3. © 2013 Pearson Education, Inc.
True or False In a dotplot each observation is represented by a dot on a number line.
True
False
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4. © 2013 Pearson Education, Inc.
True or False In a histogram bars are drawn to show how many observations lie in each bin.
True
False
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5. © 2013 Pearson Education, Inc.
In a stemplot,
Numbers are divided into leaves (the last digit) and stems (the preceding digits).
Stems are written in a vertical column.
Associated leaves are attached to the stems.
All of the above.
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6. © 2013 Pearson Education, Inc.
When examining distributions of numerical data, one should pay attention to the
Center.
Shape.
Horizontal spread.
All of the above.
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7. © 2013 Pearson Education, Inc.
A distribution in which the left-hand side of the graph is roughly a mirror image of the right-hand side is called
Right-skewed.
Bimodal.
Left-skewed.
Symmetric.
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8. A distribution that has a tail that goes to the left is called
Right-skewed.
Bimodal.
Left-skewed.
Symmetric.
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9. A distribution that has one mound is called a
Multimodal distribution.
Unimodal distribution.
Left-skewed distribution.
A Bimodal distribution.
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10. A bimodal distribution has
One mound.
Two mounds.
More than two mounds.
Is symmetric.
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11. © 2013 Pearson Education, Inc.
An outlier
is a value so large or small that they it does not fit the data.
has no precise definition.
can be caused by mistakes in data entry.
All of the above.
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