Statistics

Sample is a smaller group or subset of the population in question

It is the most common value in the sample set. The value that appears most frequently in the core set is really mode.

Parameter describes a a sample.

It is a group where members have something in common

Statistic describes only the sample.

It is the the study and manipulation of data, including ways to gather, review, analyze, and draw conclusions from data.

It is a measure of how far a set of data deviates from its mean.

It is a metric for calculating the average of all values in a sample set.

It determines how far a random variable deviates from its expected value and can be calculated as square of deviation.

It is a measurement of how values in a sample set or data set are spaced apart.