To collect and organize data for drawing conclusions or answering questions

To memorize numbers and formulas

To create random graphs and charts

To guess outcomes without evidence

Assigning variables to characteristics

Converting non-numeric raw scores to numbers

Collecting names of individuals

Listing characteristics such as height and weight

Descriptive statistics summarize data, inferential statistics make predictions about a population

Descriptive statistics use probability, inferential statistics do not

Inferential statistics only describe data, not predict

Descriptive statistics require a sample, inferential statistics require a population

Mean (μ) and $$\overline{x}$$

Variance (σ²) and s²

Proportion (π or P) and p' (p-hat)

Standard Deviation (σ) and s

Population size (N) and Sample size (n)