MBA 513 Module 1 Ch. 2
Regarding frequency tables and frequency distributions, which one of the following is true?
Both show the number of observations in each class
Which of the following are characteristics of bar charts?
- Bar charts are used for qualitative data - There should be gaps between bars - Plotted rectangles should be the same width
Which of the following are characteristics of frequency tables?
- No observation can fit into more than one class - They can be used for qualitative data
Regarding frequency tables and frequency distributions, which of the following are true?
- Only frequency tables use qualitative data. - Both use mutually exclusive classes.
Which of the following are characteristics of frequency distributions?
- Organize raw data - Use classes and frequencies to organize data - It provides the tally for each class
Which of the following best describes a frequency table?
A grouping of qualitative data into classes showing the number of observations in each class
What is the final step in creating a frequency distribution?
Count the number of observations in each class
Which one of the following is not a characteristic of a frequency distribution?
It summarizes qualitative data
Which one of the following is true regarding raw data?
Raw data are simply a listing of data before summarizing it
A business statistics course has 2 accounting majors, 4 finance majors, 6 marketing majors, and 8 insurance majors. Which one of the following is true if a pie chart was constructed to depict majors of students?
The marketing slice would be three times as big as the accounting slice
What information is shown on the horizontal axis of a bar chart?
The qualitative class labels
Which of the following is true about pie charts?
The size of a slice should represent the relative frequency or percentage
Which of the following is a feature of relative frequency distribution?
The sum of the relative frequencies must be one (assuming no rounding errors)
A relative frequency distribution shows:
the fraction or percentage of observations in each class interval