Posted: May 6th, 2016

Which is not a tip for effective bar charts?

1. Which is not a tip for effective bar charts?
A) Time usually goes on the horizontal axis.
B) Bar height or length should be proportional to the quantity displayed.
C) Label data values at the top of each bar unless graphing lots of data.
D) The non zero origin rule may be waived for financial reports.
2.
The ______________can be used to differentiate the vital few causes of quality problems from the trivial many causes of quality problems.
A) histogram
B) scatter plot
C) Pareto chart
D) box plot
3.
When using a dot plot to visualize a distribution which of the following is least apparent?
A) Dispersion of data within the distribution.
B) Central tendency of data within the distribution.
C) Location of data within the distribution.
D) The shape of the distribution.

4.
Which is not a useful characteristic of a dot plot?
A) Simplicity.
B) Legibility.
C) Causation.
D) Association.

5.
Which display is most likely to reveal association?
A) Dot plot.
B) Scatter plot.
C) Histogram.
D) Radar chart.
6.
We expect that the ideal number of classes in a frequency distribution will
A) reflect Sturges Rule.
B) be based on aesthetic judgment.
C) provide nice class (bin) limits.
D) have all of the above characteristics.

7.
Which is a reason for using a log scale for time series data?
A) It is easier to compare rates of change in time series of dissimilar magnitude.
B) General business audiences find it easier to interpret a log scale.
C) On a log scale, equal distance represents equal dollar amounts.
D) Arithmetic scales are harder to interpret for most data.

8.
Pyramid charts
A) are generally preferred to bar charts.
B) are generally preferred to line charts.
C) should be avoided because it is hard to read their bar height
.
D) More than one of the above are true.

9.
Which is not a reason why pie charts are popular in business?
A) They can convey a general idea of the data to a non technical audience.
B) They can display major changes in parts of a whole (e.g., market share).
C) They are more precise than line charts, despite their low visual impact.
D) They are can be labeled with data values to facilitate interpretation.

10.
Which data would be suitable for a pie chart?
A) Average starting salary of MBA graduates from six ivy league universities.
B) APR interest rates charged by to top five credit U.S. credit cards.
C) Last semester s average GPA for students in seven majors in a business school.
D) None of the above would be suitable for a pie chart.

11.
Scatter plots are
A) useful in visualizing trends in time series data.
B) useful in identifying causal relationships between two quantitative variables.
C) widely used in business, education, and science.
D) More than one of the above.

12.
Which is not a characteristic of an effective table?
A) The main point should be clear within 10 seconds.
B) Data to be compared should be displayed in rows, not columns.
C) Data should be rounded to 3 or 4 significant digits.
D) Use space instead of lines to separate columns.

13.
Pictograms are
A) attractive to statisticians, but not the general media.
B) line graphs rather than pictures.
C) attention getting.
D) Pictograms have all of these characteristics.
14.
Which of the following is least useful in visualizing nominal data?
A) Bar chart.
B) Pie chart.
C) Line chart
D) Table.

15.
Which is not considered a novelty chart?
A) Pie chart.
B) Spider chart.
C) Pyramid chart.
D) Radar chart.

16.
Which is not considered a deceptive graphical technique?
A) Nonzero origin.
B) Elastic graph proportions.
C) Dramatic title.
D) Axis demarcations.

17.
Which is the most serious deceptive graphical technique?
A) Vague source.
B) Using colors.
C) Area trick.
D) Distracting pictures.

18.
Which of these results in major graphical deception?
A) Vague or unclear source.
B) Using more than one color or font.
C) Using a dramatic graph title.
D) None of these is a serious deception.

19.
The distribution pictured below is
A) bimodal and skewed right.
B) bimodal and skewed left.
C) skewed right.
D) skewed left.

20.
The distribution pictured below is
A) bimodal and skewed right.
B) bimodal and skewed left.
C) skewed right.
D) skewed left.