Vocab 2-3 Flashcards
Central tendency
Number that describes something above the average score of a distribution
Normal curve
Graph of frequency distribution shaped like a symmetrical, Bell Shaped curve
Correlation coefficients
Describes the Direction and strength of the relationship between two sets of observations
Statistics
The branch of mathematics concerned with summarizing and making meaningful inferences from collections of data
Descriptive statistics
The listing and summarizing of data in a practical efficient way
Standard deviation
A measure of their ability that describes an average distance of every score from the mean
Frequency distribution
An arrangement of data that indicates how often a particular score or a observation occurs
Variability
Measure of difference or spread of data
Inferential statistics
Numerical methods used to determine whether to research data support a hypothesis or whether results to do the chance