Organisation of Data Test - 4

A Frequency array is an array of frequencies according to variate values, that is to say, a frequency distribution. The term “array” is often used for the individual frequency distributions which form the separate rows and columns of a bivariatefrequency table. The raw data when put in ascending or descending order of magnitude is called an array or arrayed data.

When the data is presented in some specific order and sequence it is called as a statistical series. An ordered sequence of data samples in numerical form used to predict or demonstrate trends through time and space is called statistical series

A Comprehensive Data Definition refers to a formal data definition that provides a complete, meaningful, easily read, readily understood definition explaining the content and meaning of data.

The lower limit for every class is the smallest value in that class. On the other hand, the upper limit for every class is the greatest value in that class. The class midpoint is the lower class limit plus the upper class limit divided by 2.

If a population is divided into a number of mutually exclusive classes according to some given characteristic and then each class is divided by reference to some second, third, etc. characteristic, the final grouping is called a manifold classification.

Classification based on the analysis of spatial objects related to its spatial characteristics, such as areas of region, roads, and ponds or rives is known as spatial classification.

Attributes assigned to variables may have the same units as the variable or have no units . If you want to store data that requires units different from those of the associated variable, it is better to use a variable than an attribute.

Under exclusive method class intervals are so fixed that upper limits of class is the lower limit of the next class.

Dichotomous variables are nominal variables which have only two categories or levels. For example, if we were looking at gender, we would most probably categorize somebody as either "male" or "female". This is an example of a dichotomous variable (and also a nominal variable).

In chronological classification the collected data are arranged according to the order of time expressed in years, months, weeks, etc., The data is generally classified in ascending order of time. For example, the data related with population, sales of a firm, imports and exports of a country are always subjected to chronological classification.

When the lower limit is included, but the upper limit is excluded, then it is an exclusive class interval.

Discrete data is information that can be categorized into a classification. Discrete data is based on counts. Only a finite number of values is possible, and the values cannot be subdivided meaningfully.

Data collected about a categorical variable will always be qualitative. Qualitative data is a categorical measurement expressed not in terms of numbers, but rather by means of a natural language description. In statistics, it is often used interchangeably with "categorical" data.

A Frequency array is an array of frequencies according to variate values, that is to say, a frequency distribution. The term “array” is often used for the individual frequency distributions which form the separate rows and columns of a bivariate frequency table. The raw data when put in ascending or descending order of magnitude is called an array or arrayed data.

When the class intervals are so fixed that the upper limit of one class is the lower limit of the next class; it is known as the exclusive method of classification. The exclusive method ensures continuity of data as much as the upper limit of one class is the lower limit of the next class.

Each class interval has two limits viz lower class limit and upper class limit. When developing a frequency distribution one usually looks at the type of variable discrete or continuous. when lower class limit is included but upper limit is excluded it is an exclusive class interval which is concerned with continuous variable.

Individual series are those series in which items are listened singely, discrete series are those series in which data are presented in manner that exact measurement of items are clearly shown.

A continuous variable is a variable that has an infinite number of possible values. In other words, any value is possible for the variable. A continuous variable is the opposite of a discrete variable, which can only take on a certain number of values.

If, in a frequency distribution, the initial class interval is indeterminate at its beginning and/or the final class interval is indeterminate at its end, the distribution is said to possess “open ended” classes.

When data are observed over a period of time the type of classification is known as chronological classification

Manifold data table explains more than three characteristics of the data.

A frequency distribution is a table that displays the frequency of various outcomes in a sample. Each entry in the table contains the frequency or count of the occurrences of values within a particular group or interval, and in this way, the table summarizes the distribution of values in the sample. Too many classes or too few classes might not reveal the basic shape of the data set, also it will be difficult to interpret such frequency distribution.

When data are observed over a period of time the type of classification is known as chronological classification.  In chronological classification the collected data are arranged according to the order of time expressed in years, months, weeks, etc., The data is generally classified in ascending order of time.

Data classification is the process of organizing data into categories for its most effective and efficient use. A well-planned data classification system makes essential data easy to find and retrieve. This can be of particular importance for risk management, legal discovery, and compliance.

This is an exclusive class interval. When the lower limit is included, but the upper limit is excluded, then it is an exclusive class interval.