BAR GRAPH

Bar Graph:

Uses bars to

show quantities

or numbers for

comparison

DATA

Data: A collection of

information used in

graphs or charts for

analysis. It can

include numbers,

measurements or

facts.

FREQUENCY

Digit Times on chart 1 1 2 4 3 4 4 3 5 5 6 4 7 3 8 1 9 3

Data: 2, 5, 6, 8, 2, 3, 4, 5, 7, 2, 9, 3, 5, 6, 7, 3, 4, 5, 5, 1, 6, 7, 4, 9, 9, 2, 3, 6

Frequency: the number of times an item occurs in data

FREQUENCY DISTRIBUTION TABLE

Frequency distribution table: a table used in statistics as a method of recording the data collected

Vehicle frequency

Car llll (4)

Truck lll (3)

motorcycle llll (5)

LINE PLOTLine plot: a number line long enough to

encompass all numbers in the sample, showing a dot or mark over the position corresponding to each number often -used with frequency tables

GRAPH

Graph: drawing ordiagram used to

record information

INTERVALInterval: thedistance betweenthe numbers on a scale or graph

interval = 10

50 -40 -30 -20 -10 - 0

LINE GRAPH

Line graph:

graph that

shows how

data changes

over time

AVERAGE or MEAN

Average: number found by dividing the sum of a set of numbers by the number of addends; average and mean are synonyms

100, 85, 100,90,95

Step 1: add 100 + 85 + 100 + 90 + 95 = 470

Step 2: divide: 470 5 = 94%

MEDIAN

Median: the middle value in an ordered set of values

100, 85, 100,90,95 Step 1: ORDER THE NUMBERS

100, 100, , 90, 85Step 2: CROSS OFF VALUES UNTIL YOU FIND THE MIDDLE VALUE

RANGERange: the difference between thehighest and lowest number in a

given set of numbers

100, 100, 95, 90, 85

100 – 85 = 15

MODE

MOde: the number that occurs most

often in a given set of numbers

100, 85, 100, 90, 95

PICTOGRAPHPictograph: Graph which uses pictures to represent quantities

PIE CHARTPie Chart: a graph using a divided circle

where each section represents part of the

total

SCALEScale: the seriesof numbersplaced at fixed distances on a graph

scale

50 -40 -30 -20 -10 - 0

STEM AND LEAF PLOT

Stem and Leaf Plot: a data display that shows groups of data arranged by place value

TABLE

Table: mathematical information organized in columns and rows

Favorite Zoo Animal

  Woodpecker 6

Koala     10

Giraffe      9

Elephant    8

Cobra   4

TALLY

Tally: marks used to record counting

TREE DIAGRAMTree diagram: adiagram shapedlike a tree todisplay samplespace by usingone branch foreach possibleoutcome

VENN DIAGRAM

Venn Diagram: diagram that uses

geometric shapes to show relationships

between sets