Equality of Area
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Q. For the same given data, area of the histogram is equal to the _________.
- double of the area of frequency polygon
- area of the bar of the bar graph
- area of the ogive curve
- area of the frequency polygon
Q. Using histogram, a frequency polygon is plotted. Variables a, b , c , d , e , f , g and h represented the certain area in the plotted graph. Which of the following options is/are true?


- a = b and b = g
- g = h and d = e
- e = f and g = h
- a = b and c = d
Q. Which of the following must be true so that area of histogram and frequency polygon are equal?
- They have to be drawn for the same data.
- Lower limit of the last class must be twice the upper limit of that class.
- Class length must be multiple of 5.
- Lower limit of first class must be 0.
Q. Which of the following statement(s) is/are true?
- Frequency polygon is a graphical representation of both discrete and continuous frequency distribution.
- Area of histogram and polygon frequency drawn for the same data are equal.
- Area of histogram is 2 times the area polygon frequency.
- Frequency polygon is a graphical representation of continuous frequency distribution only.
Q. Using histogram, a frequency polygon is plotted as shown below. 
If the area of frequency polygon is 100 unit2 and class length are same for all the classes, what is the length of a class interval?

If the area of frequency polygon is 100 unit2 and class length are same for all the classes, what is the length of a class interval?
- 15 unit
- 10 unit
- 0.5 unit
- 5 unit
Q. The following figure shows a histogram and corresponding frequency polygon. The data shows the number of victims suffering from a disease 'X' in various months of 2012.

Identify the correct statement(s) among the following.

Identify the correct statement(s) among the following.
- The area under the frequency polygon is equal to the sum of areas of all bars of the histogram.
- Least number of victims are seen in February.
- June has the highest frequency of victims.
- The frequency graph is incorrect.