Question Details

21. A ______________ shows the relationship between two variables. 
A. Stem-and-leaf
B. Bar chart
C. Histogram
D. Scatter Plot
E. Pie chart

22. A ______________ 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. Ogive plot
E. Stem and leaf display

23. ______________ and _____________ are used to describe qualitative (categorical) data. 
A. Stem and leaf displays, scatter plots
B. Scatter plots, histograms
C. Box plots, bar charts
D. Bar charts, pie charts
E. Pie charts, histograms

24. Which one of the following statistical tools is used with quantitative data? 
A. Bar chart
B. Histogram
C. Pie chart
D. Pareto chart

25. When developing a frequency distribution the class (group), intervals should be 
A. large.
B. small.
C. integer.
D. mutually exclusive.
E. equal.

26. Which of the following graphical tools is not used to study the shapes of distributions? 
A. Stem-and-Leaf display
B. Scatter plot
C. Histogram
D. Dot plot

27. All of the following are used to describe qualitative data except the: 
A. Bar chart
B. Pie chart
C. Histogram
D. Pareto Chart

28. If there are 130 values in a data set, how many classes should be created for a frequency histogram? 
A. 4
B. 5
C. 6
D. 7
E. 8

29. If there are 120 values in a data set, how many classes should be created for a frequency histogram? 
A. 4
B. 5
C. 6
D. 7
E. 8

30. If there are 62 values in a data set, how many classes should be created for a frequency histogram? 
A. 4
B. 5
C. 6
D. 7
E. 8

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