Draw a pie-diagram representing the relative frequencies (expressed as percentage) of the eight classes as given below: 12.6, 18.2, 17.5, 20.3, 2.8, 4.2, 9.8, 14.7

Arrange in ascending order : -9, -2, -12, -3, 0, -17, 4, 8, -14

. Find the median of the given data: 8, 9, 12, 7, 5, 4, 18, 20, 6,3

Suggest a universal set for the sets given below : (5,7,9) , (3,5,7) ,(1,3,9) and ( 2,4,8)

the daily minimum temperatures in degrees Celsius recorded in a certain Arctic region are as follows: -12. 5 ,-10. 8 ,-18. 6 ,-8. 4 ,-10. 8 ,-4. 2 ,-4. 8 ,-6. 7 ,-13. 2 , -11. 8 ,-2. 3 , 1.2 , 2.6 ,0,-2. 4 ,0, 3.2 , 2.7 , 3.4 ,0,-2. 4 ,-2. 4 ,0, 3. 2 , 2.7 , 3.4 ,0,-2. 4 ,-5. 8 ,-8. 9 ,-14 ,6,-12. 3 ,-11. 5 ,-7. 8 ,-2. 9 Represent them as frequency distribution table taking -19. 9\ to-15 as the first class interval.

The daily maximum temperatures (in degree Celsius) recorded in a certain city during the month of November are as follows: 25.8,24.5,25.6,20.7,218,20.5,20.6,20.9,22.3,22.7,23.1,22.8,22.9,21.7,21.3,20.5, 20.9,23.1,22.4,21.5,22.7,22.8,22.0,23.9,24.7,22.8,23.8,24.6,23.9,21.1 Represent them as a frequency distribution table with class size 1^0C

Select the proper fractions from the fractions given below: 5/(9), 11/(8), 23/(25), 19/(20), 18/(17), 3/(8), 12/(7), 5/(11), 15/(13), 17/(27)

Construct a frequency table for the following ages (in years) of 30 students using equal class intervals, one of them being 9-12, where 12 is not included. 18, 12, 7, 6, 11, 15, 21, 9, 8, 13, 15, 17, 22, 19, 14, 21, 23, 8, 12, 17, 15, 6, 18, 23, 22, 16, 9, 21, 11, 16.

Construct a frequency distribution table for the following data, taking class-intervals 4-6, 6-8 , ............. 14-16 . 11.5, 6.3, 7.8, 9.2, 10.5, 4.5, 6, 8.3, 12.5, 15.8, 7.4, 5.3, 8.4, 15.2, 8.9, 9.8, 8.25, 6.5, 5.8, 10.5, 14.2, 15.3, 11.7, 9.9, 8.8, 6.6, 4.3, 4.7, 9.4, 10.1, 15.5, 14.4, 12.2, 7.7, 5.5 .

Draw an ogive to represent the following frequency distribution: Class-interval: 0-4 5-9 10-14 15-19 20-24 No. of students: 2 6 10 5 3

Find the mean deviation about the median of the following frequency distribution: Class:, 0-6, 6-12, 12-18, 18-24, 24-30 Frequency:, 8, 10, 12, 9, 5