The daily wages in a factory are distributed as follows: Daily wages (in Rs.) 125 - 175 175 - 225 225 - 275 275 - 325 325 - 375 Number of workers 4 20 22 10 6 Draw a frequency polygon for this distribution.

Steps: Draw a histogram for the given data. Mark the mid-point at the top of each rectangle of the histogram drawn. Also, mark the mid-point of the immediately lower class-interval and mid-point of the immediately higher class-interval. Join the consecutive mid-points marked by straight lines to obtain the required frequency polygon. The required frequency polygon is as follows:

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The Daily Wages in a Factory Are Distributed as Follows: Draw a Frequency Polygon for this Distribution.

Question

The daily wages in a factory are distributed as follows:

Daily wages (in Rs.)	125 - 175	175 - 225	225 - 275	275 - 325	325 - 375
Number of workers	4	20	22	10	6

Draw a frequency polygon for this distribution.

Graph

Solution

Steps:

Draw a histogram for the given data.
Mark the mid-point at the top of each rectangle of the histogram drawn.
Also, mark the mid-point of the immediately lower class-interval and mid-point of the immediately higher class-interval.
Join the consecutive mid-points marked by straight lines to obtain the required frequency polygon.

The required frequency polygon is as follows: