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Briefly list strengths and weaknesses of this display.Cite specific principles of good graphs,as well as offering your own general interpretation. Briefly list strengths and weaknesses of this display.Cite specific principles of good graphs,as well as offering your own general interpretation.

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Clear graph,clear title,but no...

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A study found the following parts per billion of nitrosamines in a sample of domestic beers.(a)Construct a frequency distribution of four classes with equal class sizes.(b)Construct another frequency distribution of four classes using unequal class intervals or an open-ended interval for the highest class.(c)Which frequency distribution is preferable? Why? A study found the following parts per billion of nitrosamines in a sample of domestic beers.(a)Construct a frequency distribution of four classes with equal class sizes.(b)Construct another frequency distribution of four classes using unequal class intervals or an open-ended interval for the highest class.(c)Which frequency distribution is preferable? Why?

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Answers will vary.Sturges' Rul...

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Briefly list strengths and weaknesses of this display.Cite specific principles of good graphs,as well as offering your own general interpretation. Briefly list strengths and weaknesses of this display.Cite specific principles of good graphs,as well as offering your own general interpretation.

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Source given,axes are clearly ...

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Excel's pyramid charts make it easier to read the data values.

A) True
B) False

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Which is not a characteristic of a dot plot?


A) Simplicity
B) Legibility
C) Wide bins
D) Dot stacking

E) C) and D)
F) B) and C)

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The point halfway between the bin limits in a frequency distribution is known as the:


A) bin midpoint.
B) bin limit.
C) bin frequency.
D) bin width.

E) A) and B)
F) C) and D)

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Briefly list strengths and weaknesses of this display.Cite specific principles of good graphs,as well as offering your own general interpretation. Briefly list strengths and weaknesses of this display.Cite specific principles of good graphs,as well as offering your own general interpretation.

Correct Answer

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Proportions are good...

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A dot plot would be useful in visualizing scores on an exam in a class of 30 students.

A) True
B) False

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Pie charts are useful in displaying frequencies that sum to a total.

A) True
B) False

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Briefly list strengths and weaknesses of this display.Cite specific principles of good graphs,as well as offering your own general interpretation. Briefly list strengths and weaknesses of this display.Cite specific principles of good graphs,as well as offering your own general interpretation.

Correct Answer

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Eye-catching and colorful,titl...

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Which is the most serious deceptive graphical technique?


A) Vague source
B) Using bold colors
C) Nonzero origin
D) Unlabeled data points

E) B) and C)
F) A) and D)

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Which is not a characteristic of a log scale for time series data?


A) Log scales are useful when data change by an order of magnitude.
B) The distance from 5 to 50 is the same as the distance from 50 to 500.
C) On a log scale,equal distances represent equal ratios.
D) Log scales are generally familiar to the average reader.

E) A) and C)
F) B) and C)

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Which is considered a novelty chart in Excel?


A) Pie chart
B) Column chart
C) Pyramid chart
D) Line chart

E) None of the above
F) All of the above

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Dot plots are similar to histograms with many bins (classes).

A) True
B) False

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Which statement is not true concerning Sturges' Rule?


A) It proposes adding one class (bin) to the histogram for each extra observation.
B) If you double the sample size,you should add one class.
C) Its purpose is to tell how many classes (bins) to use in a frequency distribution.
D) It is only a guideline and may be overruled by other considerations.

E) A) and B)
F) B) and C)

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Scatter plots are:


A) useful in visualizing trends over time.
B) useful in identifying causal relationships.
C) often fitted with a linear equation in Excel.
D) applicable mainly to discrete data.

E) A) and D)
F) All of the above

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If you have 256 data points,how many classes (bins) would Sturges' Rule suggest?


A) 6
B) 7
C) 8
D) 9

E) A) and D)
F) B) and C)

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Which is a not a characteristic of pie charts?


A) Pie charts can only convey a general idea of the data values.
B) Pie charts are ineffective when they have too many slices.
C) Exploded and 3-D pie charts will allow more "slices."
D) Pie chart data always represent parts of a whole (e.g. ,market share) .

E) None of the above
F) A) and B)

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In a bimodal histogram,the two highest bars will have the same height.

A) True
B) False

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The number of bins in this histogram (caffeine content in mg/oz for 65 soft drinks)is consistent with Sturges' Rule. The number of bins in this histogram (caffeine content in mg/oz for 65 soft drinks)is consistent with Sturges' Rule.

A) True
B) False

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