The runs scored by two teams A and B on the first 60 balls in a cricket match are given below:


Number of balls



Team A



Team B



1 – 6


7 - 12


13 - 18


19 - 24


25 - 30


31 - 36


37 - 42


43 - 48


49 - 54


55 - 60



2


1


8


9


4


5


6


10


6


2



5


6


2


10


5


6


3


4


8


10



Represent the data of both the teams on the same graph by frequency polygons.


[Hint: First make the class intervals continuous.]

The data is represented in a discontinuous class interval. So, at first, we will make it continuous.


The difference is 1.


Hence, we subtract μ = 0.5 from the lower limit and add 0.5 to the upper limit.



NUMBER OF BALLS



TEAM A



TEAM B



0.5-6.5



2



5



6.5-12.5



1



6



12.5-18.5



8



2



18.5-24.5



9



10



24.5-30.5



4



5



30.5-36.5



5



6



36.5-42.5



6



3



42.5-48.5



10



4



48.5-54.5



6



8



54.5-60.5



2



10



Now,


We will draw frequency polygon for the given data:



 

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