Statistics Video Notes - Vocabulary Flashcards

Vocabulary flashcards covering key statistics terms from the video notes.

Descriptive statistics

Numerical data used to measure and describe characteristics of groups

Histogram

A bar graph depicting a frequency distribution.

Mode

The most frequently occurring score(s) in a distribution.

Mean

The arithmetic average of a distribution, obtained by adding the scores and then dividing by the number of scores.

Median

The middle score in a distribution; half the scores are above it and half are below it.

Skewed distribution

A representation of scores that lack symmetry around their average value.

Range

The difference between the highest and lowest scores in a distribution.

Standard deviation

A computed measure of how much scores vary around the mean score.

Normal curve (normal distribution)

A symmetrical, bell-shaped curve that describes the distribution of many types of data;

Inferential statistics

Numerical data that allow one to generalize from sample data the probability of something being true of a population.

Statistical Significance

A statistical statement of how likely it is something occurred by chance