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A Pareto chart is useful for showing percentages of the total.

A) True
B) False

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What is the lower class limit in the class -7 to 14


A) -7
B) 3.5
C) 14
D) -7.5

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

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The frequency polygon is a graph that displays the data by using lines that connect points plotted for the frequencies at the midpoints of the classes.

A) True
B) False

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  Find the class with the greatest number of data values. A) 70 B) 90 C) 60 D) 40 Find the class with the greatest number of data values.


A) 70
B) 90
C) 60
D) 40

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

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The lower class limit represents the smallest data value that can be included in the class.

A) True
B) False

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A histogram is a graph that represents the cumulative frequencies for the classes in a frequency distribution.

A) True
B) False

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What are the boundaries of the class 4-18?


A) 4
B) 14
C) 4 and 18
D) 3.5 and 14.5

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

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A frequency polygon and a histogram have the same overall shape.

A) True
B) False

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For the numbers -5, -2, -7, and 0, which of the following that includes all four is a good class?


A) -8 to 1
B) -5 to 1
C) -7 to 0
D) -7 to 1

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

Correct Answer

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A stem and leaf plot is useful for keeping more precision than a grouped frequency distribution.

A) True
B) False

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The cumulative frequency is the sum of the frequencies accumulated to the upper boundary of a class in the distribution.

A) True
B) False

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The graphs that have their distributions as proportions instead of raw data as frequencies are called


A) relative frequency graphs.
B) ogive graphs.
C) histograms.

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

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Using the following frequency distribution, construct a frequency polygon. Using the following frequency distribution, construct a frequency polygon.

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A pie graph is not useful to show which of the following characteristics of data?


A) The trend of the data over time
B) The relative frequencies of each category of the distribution
C) Which categories make up the larger proportions of the total
D) Which categories make up the smaller proportions of the total

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

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The rate of mortality of children is very high in the first weeks of life.It then decreases rapidly until 1 or 2 years of age and then increases slowly into the teen years.In this situation one should construct relative frequency distributions (per year of age) with narrow class widths during the first year of life so as to exhibit the quickly changing mortality rate.

A) True
B) False

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  Construct a pie chart for the following distribution: Construct a pie chart for the following distribution:

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Varies depending on ...

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An ogive and a frequency polygon have the same overall shape.

A) True
B) False

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Which of the following is a histogram?


A) Which of the following is a histogram?  A)    B)    C)    D)
B) Which of the following is a histogram?  A)    B)    C)    D)
C) Which of the following is a histogram?  A)    B)    C)    D)
D) Which of the following is a histogram?  A)    B)    C)    D)

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

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Which of the following should not be done when constructing a frequency distribution?


A) select the number of classes desired
B) find the range
C) use a class width with an even number
D) use classes that are mutually exclusive

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

Correct Answer

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  Construct a Pareto chart for the following distribution: Construct a Pareto chart for the following distribution:

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Sorted in the order ...

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