Construct a combined histogram and frequency polygon for the following frequency distribution :
`{:("Calss Interval","Frequency"),(10-20,3),(20-30,5),(30-40,6),(40-50,4),(50-60,2):}`

Construct a frequency polygon for the following distribution :

Draw frequency polygons for each of the following frequency distributions : using histogram

Construct a frequency distribution table from the following cumulative frequency distribution : {:("Calss Interval","Frequency"),(5-10,18),(10-15,30),(15-20,46),(20-25,73),(25-30,90):}

Construct a frequency polygon for the following data. {:("Calss Interval","Frequency"),(10-14,5),(15-19,8),(20-24,12),(25-29,9),(30-34,4):}

Construct a frequency distribution table from the following cumulative frequency distribution : {:("Calss Interval","Cumulative Frequency"),(10-19,8),(20-29,19),(30-39,23),(40-49,30):}

Draw frequency polygons for each of the following frequency distributions : without using histogram.

Construct a cumulative frequency distribution table from the frequency table given below : {:("Calss Interval","Frequency"),(1-10,12),(11-20,18),(21-30,23),(31-40,15),(41-50,10):}

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):}

Construct a cumulative frequency distribution table from the following frequency table : {:( " C.I" , ,"Frequency "),( 11-20 , , 15),(21-30, ,21),(31-40, ,26),(41-50,, 18),(51-60,,13),(61-70,,15):}

Construct a cumulative, frequency distribution table from the frequency table given below : {:("Calss Interval","Frequency"),(0-8,9),(8-16,13),(16-24,12),(24-32,7),(32-40,15):}