Draw a cumulative frequency curve (ogive) for each of the following distributions :
`{:("Class interval ", 10-19, 20-29 ,30-39, 40-49, 50-59),("Frequency " ," "23, " " 16, " " 15, " " 20, " " 12):}`

Draw a cumulative frequency curve (ogive) for each of the following distributions : {:("Class interval ", 10-15, 15-20, 20-25, 25-30, 30-35, 35-40),("Frequency " ," "10, " " 15, " " 17, " " 12, " " 10, " " 8):}

Draw a less than cumuative frequency curve (ogive) for the following distribution :

Draw histograms for the following frequency distributions : {:("Class interval ", 30-39, 40-49, 50-59, 60-69, 70-79),("Frequency "," "24, " " 16, " " 09, " " 15, " " 20):}

Draw histograms for the following frequency distributions : {:("Class interval ", 0-10, 10-20, 20-30, 30-40, 40-50, 50-60),("Frequency "," "12, " " 20, " " 26, " " 18, " " 10, " " 6):}

Draw histograms for the following frequency distributions : {:("Class interval ", 10-16, 16-22, 22-28, 28-34, 34-40),("Frequency "," "15, " " 23, " " 30, " " 20, " " 16):}

Draw a cumulative frequency curve (ogive) for the following distribution {:(" Mark ", 5 -10,10-15,15-20,20-25,25-30),(" no. of students "," "7, " "9, " "12, " "8, " "6):}

The median class in the following frequency distribution is {:("Class interval :",0-10,10-20,20-30,30-40,40-50),("Frequency :",12,13,25,20,10):}

The mode of the following distribution is {:("Class interval :",1-5,6-10,11-15,16-20,21-25),("Frequency :" ,4,7,10,8,6):}

Find the mean of the following frequency distributions: Class interval: 0-10 10-20 20-30 30-40 40-50 Frequency: 9 12 15 10 14

Draw a histogram for the following {:("Class interval ", 11-20,21-30,31-40,41-50,51-60),(" Frequency "," "5, " "8, " "13 , " "10, " "6):}