Probability and statistics unit 2

Réussis tes devoirs et examens dès maintenant avec Quizwiz!

Connection

Reference graph of calculations

Mode

the peaks in a distribution 1- unimodal 2- bimodal 3 or more- multimodal

Percentile

A value is at the pth percentile in a distribution if p% of the values are less than or equal to that value

Skewed right

A distribution has this shape if it's tail extends farther right

Skewed left

A distribution has this shape if it's tail extends longer towards the left

Symmetric

A distribution has this shape if it's tail is the same on both sides

Stem plot (stem and leaf plot)

A graph for quantitative data retains the actual value

Histogram

A graph for quantitative data that uses bars to represent the frequency of values in an interval (not a bar chart)

Bar graph

A graph for quantitative data that uses bias to show the frequency of values in categories

Dot plot

A graph for quantitative data that uses dots to display the frequency of specific values; usually used with discrete data

Line graph

A graph for quantitative data that varies over time

Distribution

A set of values a variable takes in a group and how often it takes those values

Shape of a distribution

A summary of how values vary in a distribution

Uniform

All bars of the histogram are approximately the same/equal height

Conclude

Answer the question

Context

Describe the situation

Median

Value that divides the distribution in half

Quartile

Values that divide the distribution in fourths


Ensembles d'études connexes

BJU World History: Chapter 10- The Reshaping of Medieval Europe

View Set

American Indians on the East Coast Guided Reading Key

View Set