Wednesday, September 21, 2016

Population, Sample, Parameter, Statistics



1.Population: A population is any entire collection of people, animals, plants or things from which we may collect data. It is the entire group we are interested in, which we wish to describe or draw conclusions about.
                     -All student of the class
                     -All registered voters of Bangladesh

2.Sample: A sample is smaller group of members of population selected to represent the population.
                     -All registered of Sylhet
 3.Parameter: A parameter is the value which is calculated from population. Parameter is a group of a population.
                    -National election
                    -Result of final exam
4.Statistics: Statistics is the quantity that is calculated from a sample data. Statistics is a characteristics of  sample.
                   -Periodic public opinion by mass media.