Graphing

1
Graphing

• Mean the average (sum / total numbers)
• Median middle number (remember to place the
  umbers in order from least to greatest first)
• Mode Most common

2
Steps

• Collect data
• Chose table or graph
• Create table or graph
• Plot the points
• Interoperate the data

3
Example

• 9 scores on a test out of 100 were as follows
• 85, 95, 87, 75, 97, 85, 79, 89, 90
• Choices Bar graph, Line graph, Pie chart

4
What goes Where?

• X-intercept independent variable (changing)
• Y-intercept dependent variable (measuring
  against to see how the independent variable
  changes
• EX Speed at various time
• X time, intervals change
• Y speed

5
Bar Graph
6
Line Graph
7
Pie chart
8
Intemperate the data

• From the charts you can tell
• Mean 86.9
• Median87
• Mode 85

9
Do one with the class

• How many pieces of gum do you chew per week?
• How far do you travel to school and how long does
  it take you to get there?
• Out of the following choices which is your
  favorite place to eat?
• (you get the idea)

10
Web sites

• Graphing Web Resources
• Create A Graph Tutorial-NCES Kids' Zone Good
  tutorial on graphing for MS and HS students.
• If you are unsure of which type of graph you
  should use, read the "How Do I choose Which Graph
  to Use" section of the tutorial.
• nces.ed.gov/nceskids/help/user_guide/graph/index.a
  sp
• The link below allows a student to enter
  information and the program builds a graph that
  can be printed or saved.
• http//nces.ed.gov/nceskids/createagraph/default.a
  spx?ID739317528b15464c8c1e34b1231f700c
• An Online Tutorial in Graphing emphasis on
  graphing in college economics
• syllabus.syr.edu/cid/graph/book.html
• Graphing With Excel - Main Menu Tutorial on
  graphing for beginning college students or
  secondary students. Focuses on using MS Excel.
• www.ncsu.edu/labwrite/res/gt/gt-menu.html

11
Web sites

• Graphing With Excel - Bar Graphs and Histograms -
  Tutorial on graphing for beginning college
  students or secondary students. Histograms are a
  specialized type of bar graph used to summarize
  groups of data
• www.ncsu.edu/labwrite/res/gt/gt-bar-home.html
• Excel Tutorial on Graphing Tutorial on graphing
  with emphasis on using Excel.
• In this tutorial on graphing, we will examine
  data taken from an experiment in which the
  circumferences and radii of several circular
  objects were measured. ...
• phoenix.phys.clemson.edu/tutorials/excel/graph.htm
  l
• The link below is to the index on using Excel
  which contains the link above on graphing.
• http//phoenix.phys.clemson.edu/tutorials/excel/in
  dex.html
• Beginning Algebra Tutorial on Graphing Linear
  Equations beginning college tutorial in algebra
  that includes graphing. In this tutorial we will
  be adding on to this by looking at graphing
  linear equations by plotting points that are
  solutions.
• www.wtamu.edu/academic/anns/mps/math/mathlab/beg_a
  lgebra/beg_alg_tut21_graph.htm