Question

 A grouped frequency distribution with uncertain first or last class is known as ​

Answer 1

Answer:

A class interval in a grouped frequency distribution table has a lower limit and an upper limit. Therefore, if we take the class interval 20 – 30, 20 is lower limit, and 30 is the upper limit. However, this grouped frequency table represents the exclusive form of data.

Answer 2

The grouped frequency distribution with uncertain first or last class is the Inclusive Class distribution. Some of the points of this class distribution include:

• A class is said to be inclusive class distribution when the lower and upper-class limit is included.
• Upper limit of each class interval is included in the inclusive class intervals of a frequency distribution.
• Lower limit of each class interval is also included in the inclusive class intervals of a frequency distribution.
• In a grouped frequency distribution each class is known as a group.
• The data in the classes are sorted and divided into groups.
• They are called classes are form clustered distribution of frequency
• The frequency distribution has 5 to 20 classes.
• These classes will be having equal width.
• They will be mutually exclusive, continuous, and exhaustive