presentation and display of data (graphs and skews)

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

histogram

width wider - touches

circle graph

A graph of data where the entire circle represents the whole or 100%

line graph

A graph that uses line segments to show changes that occur over time

stem and leaf plot

A method of graphing a collection of numbers by placing the "stem" digits (or initial digits) in one column and the "leaf" digits (or remaining digits) out to the right.

Line Plot/Dot Plot

a diagram that shows the frequency of data on a number line

normal distribution

bell-shaped curve mean, median, mode same figure, midpoint of curve ends never touch x-axis

Negative Skew (skewed to the left)

bulk of distribution on right long tail on left mean pulled to left (extremes affect)

bar chart (bar graph)

graph in which frequency of each variable is represented by height of bars -do not touch each other discrete (e.g. shoe size, hair color) data on x-axis

Scattergram/Scatterplot

graph that represents the strength and direction of a relationship between co-variables in a correlational analysis

skewed distribution

lean to a side

Positive Skew (skewed to the right)

most distribution concentrated on left of graph long tail on right mean in furthest to the right (extreme scores affected)


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