Draw an ogive for each of the following distributions
`{:("Marks obtained ", "less than 10 ", " less than 20 ", " less than 30 ", " less than 40 ", " less than 50 "),("No. of students " ," "8, " " 25, " " 38, " " 50, " " 67):}`

Draw a 'less than' give for the following frequency distribution :

Find 20% less than Rs 70.

Find 10% less than Rs 150.

Construct a frequency table from the following data {:("Marks","No of students"),("less than" 10,6),("less than" 20,15),("less than" 30,30),("less than" 40,39),("less than" 50,53),("les than" 60,70):}

Draw an ogive for each of the following distributions {:(" Age in years (less than )", 10, 20, 30, 40, 50, 60, 70),(" Cumulative frequency " ,0, 17, 32, 37, 53, 58, 65):}

Write the negation of each of the following statements. 5 is greater than 3 or 4 is less than 8.

Write the negation of each of the following statements. It is not true that 3 is less than 4.

The median of the following data is {:("Marks obtained ","No. of students "),("less than 20",0),("less than 30",4),("less than 40",16),("less than 50",30),("less than 60",46),("less than 70",66),("less than 80",82),("less than 90",92),("less than 100",100):}

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

Which of the following is less than zero during adsorption?