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Frequency Polygon and Frequency Curve

A frequency c...

Question

A frequency curve is drawn by joining the midpoints of all the top edges of the rectangles in a histogram by straight lines.

A

True

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B

False

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Solution

The correct option is B False
A frequency polygon, not a frequency curve, is drawn by joining the midpoints of all the top edges of the rectangles in a histogram by straight lines. A frequency curve is meant to be an approximate reflection of the frequency polygon and is drawn using curvy and wavy lines unlike that of a frequency polygon.

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Q. A ___ is a curve which is plotted by joining the mid-points of all top edges of a histogram by freehand smoothed curves and not by straight lines.

Q. ___ is formed by joining mid-points of the top edges of all the rectangles in a histogram.

We can get a line graph from a bar graph by joining only the midpoints of the top edges of the bars.

Q. Fill in the blanks by using proper substitutes given in the bracket.

1) __________ is an orderly arrangement of data in rows and columns.
(Diagrams/Table/ Bar/ Histogram)

2) __________is a visual form of presenting tabulated data.
(Diagram/Picture/Frequency distribution/Bar)

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4) A frequency polygon is a ______ line curve.
(straight line/freehand/ joint/multi-dimensions)

5) _________ diagrams are used for comparisons.
(Multiple bar, Simple bar/ Sub-divided/ Percentage Bar)

The quadrilateral formed by joining the midpoints of the pairs of adjacent sides of a rectangle is a

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