Mathematics
The class-mark of class 19 - 30 is: 1. 30+19/2 2. 29.5 - 19.5/2 3. 30.5 - 19/2 4. 29.5 - 18.5/2
Related Questions
Construct a frequency polygon for the following data :
Class-intervals 10 - 14 15 - 19 20 - 24 25 - 29 30 - 34 Frequency 5 8 12 9 4 The daily wages in a factory are distributed as follows :
Daily wages (in ₹) 125 - 175 175 - 225 225 - 275 275 - 325 325 - 375 Number of workers 4 20 22 10 6 Draw a frequency polygon for this distribution.
In a frequency distribution, mid-values of the class is 10 and width of the class is 6, the lower limit of the class is :
6
7
8
9