Statistics For Data Science

The value appearing at the center of a sorted version of a list, or the mean of the two central values.

• Median

• Mean

• Range

• Modus

The distance between the greatest number and the least number in a set of data.

• Median

• Modus

• Mean

• Range

A value that is much higher or much lower than the other values in a set of data.

• Histogram

• Boxplot

• IQR

• Outlier

A sample in which each individual or object in the entire population has an equal chance of being selected.

• Non Probability Random Sample

• Probability Random Sample

• Biased Sample

• Population

The parameter is a number describing?

• Sample

• Population

• Statistics

• Summary

The statistic is a number describing?

• Sample

• Population

• Parameter

• Survey

A hypothesis associated with a contradiction to a theory one would like to prove.

• Null hypothesis

• Alternative hypothesis

• One hypothesis

• Alpha

A hypothesis (often composite) associated with a theory one would like to prove.

• Null hypothesis

• Alternative hypothesis

• Alpha

• Beta

Probability of rejecting the null hypothesis, where the null hypothesis is true

• Beta

• 1-Beta

• 1-Alpha

• Alpha

The probability of accepting the null hypothesis, wherein the null hypothesis is false.

• 1-Beta

• Beta

• Alpha

• 1-Alpha