Q7 of 174 Page 565

Draw a histogram to represent the following data.



















Class interval



10-14



14-20



20-32



32-52



52-80



Frequency



5



6



9



25



21


In the given frequency distribution, Class sizes are different.


So, we calculate adjusted frequency for each class, As, minimum class size = 4


Adjusted frequency of a class =


































Class interval



Frequency



Adjusted Frequency



10 – 14



5





14 – 20



6





20 – 32



9





32 – 52



25





52 – 80



21





Histogram is as follows:



More from this chapter

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5

Construct a histogram for the following frequency distribution.





















Class interval



5-12



13-20



21-28



29-36



37-44



45-52



Frequency



6



15



24



18



4



9


 6

The following table shows the number of illiterate persons in the age group (10-58 years) in a town:























Age group (in years)



10-16



17-23



24-30



31-37



38-44



45-51



52-58



Number of illiterate persons



175



325



100



150



250



400



525



Draw a histogram to represent the above data.

 8

In a study of diabetic patients in a village, the following observations were noted.





















Age in years



10-20



20-30



30-40



40-50



50-60



60-70



Number of patients



2



5



12



19



9



4



Represent the above data by a frequency polygon.

 9

The ages (in years) of 360 patience treated in a hospital on a particular day are given below.





















Age in years



10-20



20-30



30-40



40-50



50-60



60-70



Number of patients



90



40



60



20



120



30



Draw a histogram and a frequency polygon on the same graph to represent the above data.