In a grouped frequency distributions, the class intervals are 1-10, 11-20, 21-30,....The class width is
5.5
11
9
10
This is a disconti
The number of runs scored by a cricket player in 10 innings are as follows: 26, 35, 95, 48, 82, 107, 53, 0, 71, 15
(i) Find the class mark of the class 90-120. (ii) In a frequency distribution, the mid-value of the class is 10 and width of the class is 6. Find the lower limit of the class. (iii) The width of each of five continuous classes in a frequency distribution is 5 and lower class limit of the lowest class is 10. What is the upper class limit of the highest class? (iv) The class marks of a frequency distribution are 15, 20, 25, .... Find the class corresponding to the class mark 20. (v) In the class intervals 10-20, 20-30, find the class in which 20 is included.