| 1 |
A graph of cumulative frequency is called: |
- A. Histogeram
- B. Frequency polygon
- C. Ogive
- D. Frequency curve
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| 2 |
Graphs of frequency distributions are used because. |
- A. they have a long history in practical applications
- B. They attract attenstion to data pattern
- C. They account for biased or incomplete data
- D. None of thses
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| 3 |
A chart in which total magnitude and its compnents are compared is called a |
- A. Component bar chart
- B. Pie chart
- C. Percentage compoent bar chart
- D. All of these
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| 4 |
Which of the following statements is true. |
- A. As a rule statisticians genereally use between 6 and 15 classes.
- B. As a rule, statisticians regards a frequency distribution incomplete if it has fewer than 20 classes.
- C. Classes describe only one characteristics the data ebign organized
- D. None of these
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| 5 |
Two methods of data arrangement are |
- A. Array and frequency distribution
- B. Frequency distribution and histogram
- C. Array and frequency polygon
- D. Histogram and array
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| 6 |
The difference between the upper and the lower boundaries of a class are known as: |
- A. class marks
- B. class intensive
- C. class frequency
- D. class limit
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| 7 |
As the numebr of observations and classes increase, the shape of a frequency polygon. |
- A. Tends to become increasingly asmooth
- B. Tends to become jagged
- C. stays the same
- D. Varies if data become more reliable
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| 8 |
Data which have been arranged in ascending or descending order are called. |
- A. Raw data
- B. Grouped data
- C. Arrayed data
- D. Un grouped data
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| 9 |
The frequency of a class divided by total frequency is called. |
- A. Class frequency
- B. Cumulative
- C. Relative freqeuncy
- D. Total frequency
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| 10 |
The secton of table that contains the column caption is called. |
- A. Stub
- B. Body
- C. Box plot
- D. Box head
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