Tag: histograms for non-uniform class widths

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Multiple choice economics graphical representation revisiting histograms histogram histograms histograms for non-uniform class widths histograms with unequal class intervals

________ is a set of rectangles with bases as the intervals between class 
boundaries (along X-axis) and with are as proportional to the class frequency.

  1. Bar diagram

  2. Component bar diagram

  3. Histogram

  4. Multiple bar diagram
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A histogram is a graphical representation of continuous data where the area of each rectangle is proportional to the frequency of the class interval, and there are no gaps between the bars.

Multiple choice economics graphical representation revisiting histograms histogram histograms histograms for non-uniform class widths histograms with unequal class intervals

Which of the following are differences between bar diagram and histogram?

  1. In a histogram, no space is left in between two rectangles, but in a bar diagram some space must be left between consecutive bars

  2. The width of a bar is unimportant for the purpose of comparison. The width in a histogram is as important as its height.

  3. We can have a bar diagram both for discrete and continuous variables, but the histogram is drawn only for a continuous variable.

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Histograms and bar diagrams differ in that histograms are for continuous data (no gaps), while bar diagrams are for discrete data (with gaps). Additionally, the width of bars in a histogram represents the class interval, whereas in a bar diagram, width is arbitrary.

Multiple choice economics graphical representation revisiting histograms histogram histograms histograms for non-uniform class widths histograms with unequal class intervals

Histogram is suitable for the data presented as _________.

  1. continuous grouped frequency distribution

  2. discrete grouped frequency distribution

  3. individual series

  4. all the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Histograms are specifically designed to represent continuous grouped frequency distributions where the data is organized into intervals.

Multiple choice economics graphical representation revisiting histograms histogram histograms histograms for non-uniform class widths histograms with unequal class intervals

Histogram also gives value of _______ of the frequency distribution graphically

  1. mode

  2. mean

  3. median

  4. all of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The mode of a continuous frequency distribution can be determined graphically using a histogram by identifying the tallest bar and using specific geometric constructions within that interval.

Multiple choice economics graphical representation revisiting histograms histogram histograms histograms for non-uniform class widths histograms with unequal class intervals

Histogram give a graphical presentation of a continuous frequents distribution.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Despite the typo 'frequents' instead of 'frequency', the statement remains true. A histogram provides a graphical presentation of a continuous frequency distribution using adjacent bars. The error doesn't change the correct answer.

Multiple choice economics graphical representation revisiting histograms histogram histograms histograms for non-uniform class widths histograms with unequal class intervals

When in a frequency distribution class widths are not same we have to draw histogram then,

  1. We mark class size as width and the given frequency as length and draw the rectangle

  2. We reduce class size to minimum class size keeping the length same

  3. We find the proportionate lengths of the class corresponding to minimum width and draw the rectangle.

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When in a frequency distribution class widths are not same we have to draw histogram then,We find the proportionate lengths of the class corresponding to minimum width and draw the rectangle.
Answer (C) We find the proportionate lengths of the class corresponding to minimum width and draw the rectangle.