Mathematics
If the class intervals 40 - 44, 45 - 49, 50 - 54 etc. in a frequency table are converted into continuous form, they become
40 - 45, 45 - 50, 50 - 55, etc
39 - 44, 44 - 49, 49 - 54, etc
39.5 - 44.5, 44.5 - 49.5, 49.5 - 54.5, etc
any of the above
Related Questions
In a histogram, the area of each rectangle is proportional to :
the class-mark of the corresponding class-interval
the class-size of the corresponding class-interval
frequency of the corresponding class-interval
cumulative frequency of the corresponding class interval
In the 'less than' type of ogive, the cumulative frequency is plotted against :
the lower limit of the concerned class interval
the upper limit of the concerned class interval
the mid-value of the concerned class interval
any value of the concerned class interval
If x and y are the lower limit and upper limit respectively of a class interval, then (y - x) gives the :
class mark
class size
range
frequency
In a grouped frequency distribution , the cumulative frequency of the last class interval denotes :
the frequency pertaining to that class
the maximum value of the variate
the total number of observations
none of these