In a frequency distribution, mid-point of a class is 10 and class width is 6. The lower limit of the class is:
In a frequency distribution, the mid-value of a class is 10 and the width of the class is 6. The lower limit of the class is: A) 6 B) 7 C) 8 D) 12
(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.