ICSE Class 9 Maths Statistics
Grouping and Tabulation of Data
Statistics deals with collection, presentation, analysis and interpretation of numerical data.
The number of times an observation occurs in the data is called the frequency of the observation.
A frequency distribution in which the upper limit of one class differs from the lower limit of the succeeding class is an Inclusive or Discontinuous Frequency Distribution.
The one in which the upper limit of one class coincides from the lower limit of the succeeding class is an Exclusive or Continuous Frequency Distribution.Graphical Representation of Data
Graphical Representation of Data
