Calculate the boundaries of the class interval in the above table 10-20,20-30.

The width of the class interval 20- 30 is

Class interval of the class 11-20 is .........

The marks obtained by 35 students in a test in statistics (out of 50) are as below. {:(35,1,15,35,45,23,31,40,21,13,15),(20,47,48,42,34,43,45,33,37,11,13),(27,18,12,37,39,38,16,13,18,5,41),(47,43, , , , , , , , ,):} Construct a frequency distribution table with equal class intervals, one of them being 10-20 (20 is not included).

Construct the class boundaries of the following frequency distribution table. Also construct less than cumulative and greater than cumulative frequency tables.

Class intervals in a grouped frequency distribution are given as 4 – 11, 12 – 19, 20 – 27, 28 – 35, 36 – 43. Write the next two class intervals. Write the class boundaries of all classes

Write the class boundaries of the following classes : 25-29, 30-34, 35-39, 40-44, 45-49, 50 - 54

Long jump made by 30 students of a class are tabulated as: Are the given class intervals inclusive or exclusive?

Long jump made by 30 students of a class are tabulated as To which class interval does the student who jumped a distance of 4.005m belongs?

Calculate the following. (-80) div 20

Mid value of the class 10 - 20 is ......