Q2 of 43 Page 22

Explain the difference between a frequency distribution and a cumulative frequency distribution.

Frequency table or frequency distribution is a method to represent raw data in the form which, one can easily understand the information contained in a raw data, where as a table which plays the manner in which cumulative frequencies are distributed over various classes is called a cumulative frequency distribution.


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11

Tally are usually marked in a bunch of

 1

Define cumulative frequency distribution.

 3

The marks scored by 55 students in a test given below:























Marks:



0-5



5-10



10-15



15-20



20-25



25-30



30-35



No. of students



2



6



13



17



11



4



2



Prepare a cumulative frequency table.

 4

Following are the ages of 360 patients getting medical treatment in a hospital on a day:





















Age (in years)



10-20



20-30



30-40



40-50



50-60



60-70



No. of patients :



90



50



60



80



50



30



Construct a cumulative frequency distribution.