Math group2 BLOCK A

Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. In a statistical figure that represents the distribution`s center or average, Averages are a common term for measures of central tendency. The term "central tendency" is occasionally used by authors to describe "the tendency of quantitative data to cluster around some central value. " The central tendency of a distribution is often contrasted with its dispersion or variability; Dispersion and central tendency are often characteristic properties of distributions.

In other words, for a measure of statistical dispersion, a measure of central tendency is required that minimizes variability: such that the change from the center is the smallest among all the choices of the median.
The most common position measures are percentages, quarters, and standard scores (also known as zscores). An observation at the 50th percentile would be the group mean. Quartiles divide a classified data set into four equal parts. A standard score (aka zscore score) indicates the number of standard deviations of an item from the mean. Where z is the z score, X is the item value, is the population mean, and is the standard deviation.

Submitted by: Angelika Doria
Submitted to: Mr. Emilio Garcia Aspuria