Interpreting Histogram and Frequency Polygon

Which of the following is a frequency histogram?

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• 
• 
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Which of the following is a feature of a histogram?

• No gap before the first column

• Half column gap before the first column

• Full column gap before the first column

Which of the following is correct?

• There should be no gap between each column

• There should be a half column width gap between each column

• There should be a full column width gap between each column

How do you construct a frequency polygon?

• Start at bottom left hand corner of first column and draw a straight line through the top right hand corner of each column

• Start at origin and draw a straight line through the centre of each column

• Start at centre of column and draw a straight line through the left hand corner of the next column.

• Start at origin and draw a straight line through the right hand corner of each column

In a frequency histogram, is the frequency displayed on the horizontal or vertical axes?

• Horizontal

• Vertical

Which interval has the greatest number of employees?

• 11-21

• 33-43

• 77-87

• 44-54

If the first class in a frequency table is 5-10, what is the class width?

• 5

• 6

• 7

• 8

Which interval has the greatest number of students?

• 48-51

• 60-63

• 56-59

• 64-67

How many people watched less than 11 hours of TV last week?

• 48

• 20

• 90

• 65

Is this an example of a histogram?

• a. yes because a histogram is a bar graph

• b. no because the bars are not touching

• c. no because the data is quantitative

• d. no because the data is qualitative

• e. Both option b and d are correct