bar graph bar graph: uses bars to show quantities or numbers for comparison
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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
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