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Supply

Tuesday March 20th, 2012 Morgan Fardo 0

Supply, in economics, is the quantity of goods and/or service produced and offered in the market at a certain price in a certain period of time.

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Curva de Oferta

Tuesday March 20th, 2012 Morgan Fardo 0

Curva de oferta é a relação entre o preço de um bem e a quantidade desse bem que os produtores estão dispostos a produzir e […]

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Demand

Tuesday March 20th, 2012 Morgan Fardo 0

In economics, demand, is the quantity of goods and/or services the buyers wish to purchase at a certain price in a given market during a defined time.

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Correlação

Sunday March 18th, 2012 Morgan Fardo 0

Correlação, também chamada de coeficiente de correlação, indica a força e a direção do relacionamento linear entre duas variáveis aleatórias. No uso estatístico geral, correlação […]

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Covariance

Wednesday March 14th, 2012 Morgan Fardo 0

The covariance between two real random variables X and Y, is defined as the measure of how these two variables vary together. The covariance is […]

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Expected Value

Wednesday March 14th, 2012 Morgan Fardo 0

The expected value of a discrete random variable is the probability-weighted average of all possible values. In other words, each possible value the random variable can assume […]

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Variance

Wednesday March 7th, 2012 Morgan Fardo 0

The variance measures how far a set of numbers is spread out. The variance of a data set is the squared sum of the distance between each number and […]

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Geometric Mean

Monday March 5th, 2012 Morgan Fardo 0

The geometric mean of a set of positive numbers is defined by the “nth root” of the “n”numbers multiplication.     The geometric mean is widely used in financial […]

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Harmonic Mean

Monday March 5th, 2012 Morgan Fardo 0

The harmonic mean of real positive numbers x1,…,xn is definided as the number of numbers divided by the sum of the inverse of each number, […]

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Measures of Central Tendency

Sunday March 4th, 2012 Morgan Fardo 0

Measures of Central Tendency shows  the value around the observations are grouped. The most common measures of central tendency are the mean (aritmetic/harmonic/geometric), the median and […]