### Covariance

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 […]

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 […]

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 […]

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 […]

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, […]

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 […]

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The Bovespa Index is an index of about 50 stocks that are traded on the São Paulo Stock Exchange.

Sorry, this entry is only available in Brazilian Portuguese.

Sorry, this entry is only available in Brazilian Portuguese.

i) término do exercício social, fixando a data.

Sorry, this entry is only available in Brazilian Portuguese.

Sorry, this entry is only available in Brazilian Portuguese.

The share is the smallest fraction that represent company’s capital.

The frequency distribution is a list of values a variable can take in a sample. Its typically a list, sorted by quantities or classes, which […]