Representative vs. Random Samples: Key Differences Explained

Learn how representative samples and random samples differ and why combining them minimizes sampling bias for accurate data.
JSTOR Daily

Statistical Error Decomposition of Regional-Scale Climatological Precipitation Estimates from the Tropical Rainfall Measuring Mission (TRMM)

Journal of Applied Meteorology and Climatology, Vol. 46, No. 6 (June 2007), pp. 791-813 (23 pages) ABSTRACT Monthly rainfall estimates inferred from the NASA Tropical Rainfall Measuring Mission (TRMM) ...
Kellogg School of Management

The Fundamental Concept

Consider a population of 70 individuals, for which you wish to estimate the mean annual income, μ. Assume that you have decided to use the following estimation procedure to make your estimate: simple ...

Representative Samples: What Percentage of the Population Is Needed?

Discover how to determine the ideal percentage of a population for a representative sample to ensure accurate data analysis with minimal sampling error.
Nature

Frozen section analysis of margins for head and neck tumor resections: reduction of sampling errors with a third histologic level

Negative margin status is an important predictor for local control and overall outcome in head and neck cancers. 1, 2, 3 Frozen section analysis is a useful tool for assessing margin status ...
JSTOR Daily

Two-Dimensional Systematic Sampling of Land Use

Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 42, No. 4 (1993), pp. 585-601 (17 pages) In this paper two-dimensional systematic sampling of land use is considered. Data ...