Summary statistics observation

What statistics can we use to summarize the observed data?
The three common ways of looking at the center are average (also called mean), mode and median.
All three summarize a distribution of the data by describing the typical value of a variable (average), the most frequently repeated number (mode), or the number in the middle of all the other numbers in a data set (median)..
An observation is a fact or figure we collect about a given variable.
It can be expressed as a number or as a quality.
An example of a number is the observation "25" for the age of a mother at the birth of her first child.

Jul 31, 2021Each observation (row) in this dataset represents dining in a restaurant. The columns names here are self-explanatory. Among the numeric

Summary statistics is a part of descriptive statistics that summarizes and provides the gist of information about the sample data. Statisticians commonly try to describe and characterize the observations by finding: a measure of location, or central tendency, such as the arithmetic mean.

Observation that would cause a large change if deleted

In statistics, an influential observation is an observation for a statistical calculation whose deletion from the dataset would noticeably change the result of the calculation.
In particular, in regression analysis an influential observation is one whose deletion has a large effect on the parameter estimates.

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Summary statistics observation

What statistics can we use to summarize the observed data?