Question-1 The class mark is also called _____________.

Question-2 ___________ is the simple arithmetic average of the different values of a variable.

Question-3 ___________ is the organisation of raw data in table form using classes and frequencies.

Question-4 ___________ are also known as statistical averages.

Question-5 A survey which includes every element of the population is known as ____________.

Question-6 ___________ is defined as the root mean square deviation.

Question-7 _______________ is the difference between maximum and minimum values in a series of distribution.

Question-8 ___________ is the maximum occurence or frequency at a particular point or value.

Question-9 ___________ is the most stable measure of variability and is used in many other statistical operations.

Question-10 The __________ is widely used in advanced statistical operations.