Class 9 | Chapter 14 | Statistics | Exercise 14.2 | Question 1

Question 1: The blood groups of 30 students of Class VIII are recorded as follows: A,B,O,O,AB,O,A,O,B,A,O,B,A,O,O, A,AB,O,A,A,O,O,AB,B,A,O,B,A,B,O.

Represent this data in the form of a frequency distribution table. Which is the most common, and which is the rarest, blood group among these students?

Statistics

This tutorial is recommended for the beginners to watch to understand the following:

  • What is statistics
  • Data
  • Information
  • Frequency distribution table
    • Ungrouped
    • Grouped
  • Class Intervals 
    • Overlapping
    • Non-overlapping
  • Class limits 
    • Upper class limit
    • Lower class limit

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