Definition of Descriptive statistics:
Mathematical quantities (such as mean, median, standard deviation) that summarize and interpret some of the properties of a set of data (sample) but do not infer the properties of the population from which the sample was drawn. See also inferential statistics.
Descriptive statistics, in short, help describe and understand the features of a specific data set by giving short summaries about the sample and measures of the data. The most recognized types of descriptive statistics are measures of center: the mean, median, and mode, which are used at almost all levels of math and statistics. The mean, or the average, is calculated by adding all the figures within the data set and then dividing by the number of figures within the set. For example, the sum of the following data set is 20: (2, 3, 4, 5, 6). The mean is 4 (20/5). The mode of a data set is the value appearing most often, and the median is the figure situated in the middle of the data set. It is the figure separating the higher figures from the lower figures within a data set. However, there are less-common types of descriptive statistics that are still very important.
Descriptive statistics are brief descriptive coefficients that summarize a given data set, which can be either a representation of the entire or a sample of a population. Descriptive statistics are broken down into measures of central tendency and measures of variability (spread). Measures of central tendency include the mean, median, and mode, while measures of variability include the standard deviation, variance, the minimum and maximum variables, and the kurtosis and skewness.
Treated as plural. Data or facts of this kind, relating to a sample or data set rather than a population.
With singular concord. The study of statistical facts and data which describe properties or features of a sample or data set, as opposed to properties which can be inferred for an entire population; the branch of statistics concerned with this.
How to use Descriptive statistics in a sentence?
- Measures of central tendency describe the center of a data set.
- Descriptive statistics consists of two basic categories of measures: measures of central tendency and measures of variability or spread.
- Descriptive statistics summarizes or describes characteristics of a data set.
- Scientist use descriptive statistics if they want to focus on a small group within the bigger group knowing that the data they find cant be used to try and figure out the behavior of that bigger group.
- Businesses are now taking very analytic approaches to their decisions and descriptive statistics are one of the main resources they are using.
- Measures of variability or spread describe the dispersion of data within the set.
- If you want to be able to make a good educated guess about a likely outcome of an event then descriptive statistics are a great tool to use.
Meaning of Descriptive statistics & Descriptive statistics Definition