GRAPHING. What is a graph?  A diagram showing the relationship between two or more variables.

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Presentation transcript:

GRAPHING

What is a graph?  A diagram showing the relationship between two or more variables

Types of Graphs:  Bar graph  Line graph  Circle graph (pie chart)  Histogram  Stem and Leaf Plot

Why do we use graphs?  They help us visualize the information!  They are an easy way to organize our data!

Who uses graphs?  Physicians/Doctors  Teachers  Accountants  Scientists  Business Jobs (marketing, finance, etc.)  Construction Managers  Engineers ** BASICALLY EVERYONE!!! **

Bar Graph -Used to show amounts Student scores on Science Galileo Test in May 2014 # Of S T U D E N T S Test scores

Line Graph: Used to show changes over time Number of Students at Meets from August to May Months # Of S T U D E N T S

Circle Graph (pie chart) -Used to show percentages 59%

Stem and Leaf Plot A table used to show data values. 15, 16, 21, 23, 23, 26, 26, 30, 32, 41 Stem Leaf Stem: left-hand column that contains the tens digits. Leaf: right-hand column showing the ones digits.

Histogram Used to show data grouping numbers into ranges/frequency. Age Ranges # Of K I D S Toys Chosen By Kids Ages 2 through 17

Homework:  Draw or cut pictures of different types of graph. Place in your Graphing note paper (purple sheet)

How to label your graph…  Title (all graphs have to have a title!)  X – Axis (horizontal)  Independent Variable/Cause  Y – Axis (vertical)  Dependent Variable/Effect

Exit Slip Answer these questions in your notebook.  Explain the differences between a bar graph and a circle graph.  Explain the differences between a histogram and a line graph.  Why do you think we would use a stem- and-leaf plot?  Why do we use graphs?