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The following data on the number of girls (to the nearest ten) per thousand boys in different sections of Indian society is given below.
SectionNumber of girls per thousand boys (frequency)
Scheduled Caste (SC)940
Scheduled Tribe (ST)970
Non SC / ST920
Backward Districts950
Non - backward Districts920
Rural930
Urban910

i) Represent the information above a bar graph .
ii) In the classroom discuss what conclusions can be arrived at from the graph.


Answer :

i) By representing section (variable) on x-axis and number of girls per thousand boys on y-axis, the graph of the information given above can be constructed by choosing an appropriate scale (1 unit = 100 girls for y - axis)

image

Here, all the rectangle bars are of the same length and have equal spacing in between them.

ii) It can be observed that maximum number Of girls per thousand boys (i.e., 970) is for ST and minimum number Of girls per thousand boys (i.e., 910) is for urban.

Also, the number of girls per thousand boys is greater in rural areas than that in urban areas, backward districts than that in non-backward districts, SC and ST than that in non-SC/ST.

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