Question

Define frequency, frequency distribution, cumulative frequency distribution, true upper and lower limits, class size of class interval,class mark of class interval, range

Answer 1

1.Frequency : The number of times a certain value or class of values occurs.
2.Frequency Distribution : The organization of raw data in table form with classes and frequencies.
3.Cumulative Frequency Distribution : The number of values less than the upper class boundary for the current class. This is a running total of the frequencies.
4.True Upper Limit :  Add a 5 to the decimal place to the right of the last number appearing in the highest value specified by the number in the class interval.
True Lower Limit :  Subtract a 5 to the decimal place to the right of the last number appearing in the lowest value specified by the number in the class interval.
5.Class size of class interval : The data is grouped into different classes to get an idea of the distribution, and the range of such class of data is called the Class Interval
6.Class mark of class : The number in the middle of the class. It is found by adding the upper and lower limits and dividing by two.
7. Range : Difference between the largest and smallest values.