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Recommended Conferences for Random Sampling

Random Sampling

There are 2 Open Access Journals, 63 Conference proceedings, 1 National symposiums are related to Psoriasis which are hosed by OMICS International

In Random Sampling, each member of the population has an equal chance of being selected as subject. . It is also considered as a fair way of selecting a sample from a given population since every member is given equal opportunities of being selected. Another key feature of simple random sampling is its representativeness of the population.

Scope & Importance

There are many methods to proceed with simple random sampling. An unbiased random selection and a representative sample is important in drawing conclusions from the results of a study. Remember that one of the goals of research is to be able to make conclusions pertaining to the population from the results obtained from a sample. Due to the representativeness of a sample obtained by simple random sampling, it is reasonable to make generalizations from the results of the sample back to the population. The most primitive and mechanical would be the lottery method. Each member of the population is assigned a unique number. Each number is placed in a bowl or a hat and mixed thoroughly. The blind-folded researcher then picks numbered tags from the hat. All the individuals bearing the numbers picked by the researcher are the subjects for the study. Another way would be to let a computer do a random selection from your population. For populations with a small number of members, it is advisable to use the first method but if the population has many members, a computer-aided random selection is preferred.

One of the best things about simple random sampling is the ease of assembling the sample. Theoretically, the only thing that can compromise its representativeness is luck. If the sample is not representative of the population, the random variation is called sampling error.

Sampling done without replacement is no longer independent, but still satisfies exchangeability, hence many results still hold. Further, for a small sample from a large population, sampling without replacement is approximately the same as sampling with replacement, since the odds of choosing the same individual twice is low. In small populations and often in large ones, such sampling is typically done "without replacement", i.e., one deliberately avoids choosing any member of the population more than once. However, this does not guarantee that a particular sample is a perfect representation of the population. Simple random sampling merely allows one to draw externally valid conclusions about the entire population based on the sample. Although simple random sampling can be conducted with replacement instead, this is less common and would normally be described more fully as simple random sampling with replacement. An unbiased random selection of individuals is important so that if a large number of samples were drawn, the average sample would accurately represent the population.

Market Analysis

The global analytical chemistry and instrumentation market was estimated to be $30.2 billion in the year 2011 and is expected to grow 8.4% from 2011 to 2016 to reach $45.2 billion. Spectrometry segment has the largest share (33.8%) followed by chromatography (22%) in the year 2011. The spectrometry market is driven by the coupling of mass spectrometry with chromatography techniques, growing 7.4% from 2011 to 2016.

OMICS International organises 1000+ Global Events every year in Conference series, on Clinical, Medicine, Pharma and Science & Technology every year across USA, Europe, Asia, Middle East, Australia and UK with support from 1000 more scientific societies and Publishes 700+ open access journals  which contains over 100000 eminent personalities, reputed scientists as editorial board and organizing committee members.

List of Best International Conferences

3rd Petrochemistry & Chemical Engineering Conference
November 30-December 02, 2015 Atlanta, USA

4th Medicinal Chemistry & Computer Aided Drug Designing Conference
November 02-04, 2015 Atlanta, USA

Protein Engineering Conference
October 26-28, 2015 Chicago, USA

Nuclear Chemistry Conference
October 17-19, 2016 Rome, Italy

3rd Bioprocess & Biosystems Engineering Conference
September 14-15, 2015 Baltimore, USA

Applied Chemistry Conference
Oct 27-29, 2016 Istanbul, Turkey

Biochemistry Conference
October 13-15, 2016 Kuala Lumpur, Malaysia

2nd Past & Present Research Systems of Green Chemistry Conference
September 14-16, 2015 Orlando, USA

World Chemistry Conference
August 4-6, 2016 Toronto, Canada

Organic Chemistry Conference
August 11-13, 2016 Las Vegas, USA

Pharmaceutical Chemistry Conference
August 04-06, 2016 Frankfurt, Germany 

Next Generation Sequencing Conference
July 21-22, 2016 Berlin, Germany

Methods in Molecular Energy Research: Theory and Spectroscopy

Euro Analysis 2015 — European Conference on Analytical Chemistry

Boron Chemistry Conference 2015

1st International Turkic World Conference on Chemical Sciences & Technologies

18th IUPAC International Symposia on Organometallic Chemistry Directed Towards Organic Synthesis (OMCOS 18)


  • Honey bee research association
  • American Association for Public Opinion Research
  • American Chemical Society
  • CASSS - An International Separation Science Society
  • American Society for Mass Spectrometry
  • Canadian Society for Analytical Sciences
  • National Center for Electron Microscopy
  • Society for Applied Spectroscopy
  • Australian and New Zealand Society for Mass Spectrometry
  • Midwest Microscopy and Microanalysis Society
  • The Chromatographic Society (CSI) of India
  • Society for Chromatographic Sciences (SCS, Japan)
  • European Society for Separation Science
  • The Chromatographic Society
  • Czech Chemical Society
  • Italian Chemical Society
  • Swedish Mass Spectrometry Society
  • British Mass Spectroscopic Society
  • The Israeli Society for Mass Spectrometry – ISMS
  • Spanish Society of Analytical Chemistry
  • Spanish Society of Chromatography and Related Techniques
  • Spanish Society of Mass Spectrometry


  • Mettler Toledo
  • Thermo Fisher Scientific Inc.
  • Perkin Elmer
  • Affymetrix Inc.
  • Illumina Inc.
  • Waters
  • Roche Diagnostics Inc.
  • Bio-Rad Laboratories
  • GE Healthcare
  • Cinfa Laboratories
  • Shimadzu Corporation
  • Hitachi High-technologies Corporation (Japan)
  • Siemens Healthcare Diagnostics (Germany) etc.
  • Hilton Instruments Ltd., UK
  • Oxford Instruments Industrial Analysis
  • SPECTRO Analytical Instruments

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This page was last updated on 14th Sep, 2015

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