In constructing a frequency distribution, as the number of classes are decreased, the class width
a. decreases
b. remains unchanged
c. increases
d. can increase or decrease depending on the data values
Answer: c. increases
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Essentials of Statistics for Business and Economics Chapter 2
- Refer to Exhibit 2-1. The number of students who work 19 hours or less is
- Refer to Exhibit 2-1. The percentage of students who work at least 10 hours per week is
- Refer to Exhibit 2-1. If a cumulative frequency distribution is developed for the above data, the last class will have a cumulative frequency of
- Refer to Exhibit 2-1. The cumulative frequency for the class of 20 - 29
- Refer to Exhibit 2-1. The cumulative percent frequency for the class of 30 - 39 is
- Refer to Exhibit 2-1. The cumulative relative frequency for the class of 20 - 29
- Refer to Exhibit 2-1. The percentage of students working 19 hours or less is
- Refer to Exhibit 2-1. The relative frequency of students working 9 hours or less
- Refer to Exhibit 2-1. The number of students working 19 hours or less
- Refer to Exhibit 2-1. The class width for this distribution
- A frequency distribution is a tabular summary of data showing the
- A line that provides an approximation of the relationship between two variables is known as the
- A set of visual displays that organizes and presents information that is used to monitor the performance of a company or organization in a manner that is easy to read, understand, and interpret.
- Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?
- The ____ can be used to show the rank order and shape of a data set simultaneously.
- Which of the following graphical methods shows the relationship between two variables?
- Conclusions drawn from two or more separate crosstabulations that can be reversed when the data are aggregated into a single crosstabulation is known as
- The reversal of conclusions based on aggregate and unaggregated data is called
- A situation in which conclusions based upon aggregated crosstabulation are different from unaggregated crosstabulation is known as
- A histogram is
- In a scatter diagram, a line that provides an approximation of the relationship between the variables is known as
- When a histogram has a longer tail to the right, it is said to be
- A histogram is said to be skewed to the left if it has a
- A graphical presentation of the relationship between two variables is
- A tabular method that can be used to summarize the data on two variables simultaneously is called
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