Q3 of 43 Page 22

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.


























































Marks



No. of students



Marks



Cumulative frequency



0-5



2



Less than 5



2



5-10



6



Less than 10



8



10-15



13



Less than 15



21



15-20



17



Less than 20



38



20-25



11



Less than 25



49



25-30



4



Less than 30



53



30-35



2



Less than 35



55




N = 55





More from this chapter

All 43 →
1

Define cumulative frequency distribution.

 2

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

 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.

 5

The water bills (in rupees) of houses in a certain street for the period 1.1.98 to 31.3.98 are given below:

56, 43, 32, 38, 56, 24, 68, 85, 52, 47, 35, 58, 63, 74, 27, 84, 69, 35, 44, 75, 55, 30, 54, 65, 45, 67, 95, 72, 43, 65, 35, 59


Tabulate the data and present the data as a cumulative frequency table using 70-79 as one of the class intervals.