In a histogram, the class intervals are continuous. The lower limit of class $30$-$40$ is:

In a histogram, the class intervals are continuous. The lower limit of class $30$-$40$ is:
  1. $25$
  2. $30$
  3. $35$
  4. $40$

Solution

Lower limit of class $30$-$40$ is $30$.

Asked in: IMO

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