### Marshal-Edgeworth Index

Thursday November 5th, 2015

The Marshal-Edgeworth index is calculated considering the mean of price and quantities between the base period (zero) and the current period (actual). Thus, the Marshal-Edgeworth price […]

### Fisher Index

Thursday November 5th, 2015

The Fisher index can be defined as the geometric mean between the Paasche index and Laspeyres index.     where: IFisher = Fisher index IPaasche= Paasche index […]

### Laspeyres Index

Thursday November 5th, 2015

The Laspeyres index is calculated by the division between the money amount in current prices (current price multiplied by base quantity) needed to purchase a basket of […]

### Paasche Index

Monday November 2nd, 2015

The Paasche index is calculated by the division between the money amount in current prices (current price multiplied by current quantity) needed to purchase a […]

### Expected Value

Wednesday March 14th, 2012

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 […]

### Variance

Wednesday March 7th, 2012

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 […]

### Geometric Mean

Monday March 5th, 2012

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 […]

### Harmonic Mean

Monday March 5th, 2012

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

Sunday March 4th, 2012

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 […]

### Frequency Distribution

Saturday February 25th, 2012

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 […]

### Arithmetic Mean

Wednesday February 8th, 2012

The arithmetic mean or just mean, of a finite number of numbers is equal the sum of all of them divided by the amount of added […]

### Standard Deviation

Wednesday February 8th, 2012

The standard deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data values. A standard […]

### Mode

Wednesday February 8th, 2012

The mode is the value that appears most often in a set of data. Example: A= { 1,2,3,4,5,5,6,7,8,9,9,9} The mode of this data set is […]