Question

the class-mark of a frequency distribution are given as follows:15, 20,25..... The class corresponding to the class mark 25 is:
a) 24.5-29.5
b) 18.5-23.5
c) 23.5-28.5
d) 22.5-27.5​

Answer 1

Step-by-step explanation:

HEY SIS THIS IS YOUR ANSWER:

Class marks are: 15,20,25,...

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20=

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 2

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 215+20

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 215+20

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 215+20 =17.5

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 215+20 =17.5Upper limit of class 20 is the mean of 20 and 25=

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 215+20 =17.5Upper limit of class 20 is the mean of 20 and 25= 2

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 215+20 =17.5Upper limit of class 20 is the mean of 20 and 25= 220+25

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 215+20 =17.5Upper limit of class 20 is the mean of 20 and 25= 220+25

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 215+20 =17.5Upper limit of class 20 is the mean of 20 and 25= 220+25 =22.5

Class marks are: 15,20,25,...Lower limit of class 20 is mean of 15 and 20= 215+20 =17.5Upper limit of class 20 is the mean of 20 and 25= 220+25 =22.520 is the class mark for the class interval 17.5−22.5