Istatistikte

Istatistikte, also known as descriptive statistics, is a branch of statistics that involves the collection, organization, analysis, interpretation, and presentation of data. It aims to summarize and describe the main features of a dataset, providing a clear picture of the data's characteristics without making inferences about a population.

Descriptive statistics can be further divided into two main categories: measures of central tendency and measures of dispersion. Measures of central tendency, such as the mean, median, and mode, provide a single value that represents the center of the data distribution. The mean is the sum of all values divided by the number of values, the median is the middle value when the data is ordered, and the mode is the most frequently occurring value.

Measures of dispersion, on the other hand, describe the spread or variability of the data. Common measures of dispersion include the range, variance, and standard deviation. The range is the difference between the highest and lowest values, the variance is the average of the squared differences from the mean, and the standard deviation is the square root of the variance.

Descriptive statistics is widely used in various fields, including business, economics, psychology, and social sciences, to summarize and interpret data, identify trends, and make informed decisions. It provides a foundation for more advanced statistical techniques and is essential for understanding and communicating the main features of a dataset.