enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Ratio estimator - Wikipedia

    en.wikipedia.org/wiki/Ratio_estimator

    Tin (1965) [18] described and compared ratio estimators proposed by Beale (1962) [19] and Quenouille (1956) [20] and proposed a modified approach (now referred to as Tin's method). These ratio estimators are commonly used to calculate pollutant loads from sampling of waterways, particularly where flow is measured more frequently than water quality.

  3. Proportionality (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Proportionality_(mathematics)

    In mathematics, two sequences of numbers, often experimental data, are proportional or directly proportional if their corresponding elements have a constant ratio. The ratio is called coefficient of proportionality (or proportionality constant) and its reciprocal is known as constant of normalization (or normalizing constant).

  4. Golden ratio - Wikipedia

    en.wikipedia.org/wiki/Golden_ratio

    Specific proportions in the bodies of vertebrates (including humans) are often claimed to be in the golden ratio; for example the ratio of successive phalangeal and metacarpal bones (finger bones) has been said to approximate the golden ratio. There is a large variation in the real measures of these elements in specific individuals, however ...

  5. Compositional data - Wikipedia

    en.wikipedia.org/wiki/Compositional_data

    In a survey, the proportions of people positively answering some different items can be expressed as percentages. As the total amount is identified as 100, the compositional vector of D components can be defined using only D − 1 components, assuming that the remaining component is the percentage needed for the whole vector to add to 100.

  6. Baker percentage - Wikipedia

    en.wikipedia.org/wiki/Baker_percentage

    Baker's percentage is a notation method indicating the proportion of an ingredient relative to ... called formula percentage, [1] a ... flour weight to obtain a ratio ...

  7. Delta method - Wikipedia

    en.wikipedia.org/wiki/Delta_method

    Example: the binomial proportion Suppose ... In statistics, the delta method is a method of deriving the asymptotic distribution of a random variable.

  8. Relative change - Wikipedia

    en.wikipedia.org/wiki/Relative_change

    A percentage change is a way to express a change in a variable. It represents the relative change between the old value and the new one. [6]For example, if a house is worth $100,000 today and the year after its value goes up to $110,000, the percentage change of its value can be expressed as = = %.

  9. Cohen's h - Wikipedia

    en.wikipedia.org/wiki/Cohen's_h

    Researchers have used Cohen's h as follows.. Describe the differences in proportions using the rule of thumb criteria set out by Cohen. [1] Namely, h = 0.2 is a "small" difference, h = 0.5 is a "medium" difference, and h = 0.8 is a "large" difference.