Q. 125.0( 1 Vote )

Draw a frequency polygon for the following frequency distribution.

Answer :

We take the imagined classes (-9, 0) at the beginning and (61-70) at the end, each of the frequency 0.

Thus we have,

We plot the following points on the graph,

A (-4.5, 0)

B (5.5, 8)

C (15.5, 3)

D (25.5, 6)

E (35.5, 12)

F (45.5, 2)

G (55.5, 7)

H (65.5, 0)

Now we draw the line segment AB, BC, CD, DE, EF, FG, GH, to obtain the frequency polygon.

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