The sum of the percent frequencies for all classes will always equal
a. one
b. the number of classes
or equal to the lower limit of each class
c. the number of items in the study
d. 100
Answer: d. 100
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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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