1 |
A relative frequency distribution presents frequencies in terms of |
- A. Fractions
- B. Whole numbers
- C. Percentages
- D. Both a and c but not b
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2 |
An arrangement of data to show the frequency of occurrence is called. |
- A. Freqeuncy distribution
- B. Probability distribution
- C. Data array
- D. Cumulative distribution
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3 |
In constructing a frequency distribution for a sample, the numebr of classes depends on. |
- A. The number of data points
- B. The range of the data colelcted
- C. Teh size of the population
- D. Both a and b but not c
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4 |
Which of the following statements is true of cumulative frequency polygons or ogives for a particular set of data. |
- A. Both less than and or more curves have the same shape
- B. Or more curves slope up and to the right
- C. Less than curve slope down and to the right
- D. Less than curve slope up and to the right
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5 |
Mid poitns of top of the rectangular of historgram are joined to get. |
- A. Frequency curve
- B. Polygen
- C. Ogive
- D. Histogram
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6 |
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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7 |
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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8 |
The smallest and the largest value of data are called. |
- A. Range
- B. Mid point
- C. Extreme value
- D. Arrayed value
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9 |
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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10 |
The process of arranging data into rows and columns is called. |
- A. Freqeuncy distribution
- B. Classification
- C. Tabulation
- D. Array
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