Simple random sampling, Mathematics

Simple Random Sampling

It refers to the sampling technique whether each and every item of the population is described an equal chance of being included in the sample. Because selection of items in the sample depends entirely on chance, this method is called also chance representative or selection sampling.

This is assumed that if the sample is chosen at random and if the size of the sample is sufficiently large then it will represent all groups in the population

Random sampling is of two types as: sampling without replacement and sampling with replacement

Sampling is said to be with replacement while from a finite population a sampling unit is drawn observed and after that returned to the population before another unit is drawn. The population in this case continues the same and a sampling unit might be chosen more than once

If alternatively a sampling unit is chosen and not returned to the population after it has been observed the sampling is said to be without replacement.

Random samples may be chosen by the help of lottery method or table of random numbers or such as tippet's table of random numbers, fischer and Yates numbers or Kendall and Babington Smith numbers.

 

Posted Date: 2/18/2013 8:06:17 AM | Location : United States







Related Discussions:- Simple random sampling, Assignment Help, Ask Question on Simple random sampling, Get Answer, Expert's Help, Simple random sampling Discussions

Write discussion on Simple random sampling
Your posts are moderated
Related Questions
determine the exact value of cos (11*3.145/6)




Give the Definition of Logarithms ? A logarithm to the base a of a number x is the power to which a is raised to get x. In equation format: If x = ay, then log a x = y.

what is the lowest term of 11/121

Relative Frequency  This type of probability requires us to make some qualifications. We define probability of event A, occurring as the proportion of times A occurs, if we re


(a) Find the curve on the surface z=x 3/2 joining the points(x,y,z)=(0,0,0) and (1,1,1) has the shortest arc lenght? (b) Use a computer to produce a plot showing the surface an

Another aid that can help children practise subtraction is the number strip. TGS can be used to improve their ability to count backwards. For example, subtracting 4 from 9 means