: The statistical method by which the relation of parameters (measurement of the values of the whole) is calculated on the basis of a certain value is called point estimation or point estimation. For example, if it is not possible to calculate the age of all the students to know the average age of the students of Dhaka City College, then by calculating the age of some of the students, the average age is found to be 20 years. Now , if the average age of 20 years is considered as the average age of all the students of Dhaka City College , then it will be point estimation .