14.6 Descriptive Statistics (Graphical)

Numerical data

Data whose values are real numbers

Categorical data

Data that tells us if an individual does or doesn't belong to a particular category

Bar graph

A(n) __________ consists of vertical bars, one bar for each category

Pie chart

A(n) __________ consists of a circle divided into sectors, one sector for each category

Bins

Nonoverlapping contiguous intervals of equal lengths

Histogram

A bar chart representing a frequency distribution; heights of the bars represent observed frequencies

Skewed to the right

Tail on the right

Skewed to the left

Tail on the left

Symmetric

Equal amounts of data on both sides of the mean/median

Standard normal distribution

Normal distribution

Bell curve