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    To deselect equations:

  1. Access the list of equations.

    Y= button

  2. Select each equal sign (=).

    down button right button enter button

  3. Continue, until all equations are deselected.

    To clear equations:

  1. Access the list of equations.

    Y= button

  2. Use the arrow keys to navigate to the right of each equal sign (=) and clear them.

    down button right button clear button

  3. Repeat until all equations are deleted.

    To draw default histogram:

  1. Access the ZOOM menu.

    ZOOM button

  2. Select <9:ZoomStat>

    nine button

  3. The histogram will show with a window automatically set.

    To draw custom histogram:

  1. Access window button to set the graph parameters.
    • X min 2.5
    • X max 3.5
    • X scl 1 (width of bars)
    • Y min 0
    • Y max 10
    • Y scl 1 (spacing of tick marks on y-axis)
    • X res 1
  2. Access graph button to see the histogram.

    To draw box plots:

  1. Access graphing mode.

    2nd button , [STAT PLOT]

  2. Select <1:Plot 1> to access the first graph.

    enter button

  3. Use the arrows to select <ON> and turn on Plot 1.

    enter button

  4. Use the arrows to select the box plot picture and enable it.

    enter button

  5. Use the arrows to navigate to <Xlist>
  6. If "L1" is not selected, select it.

    2nd button , [L1] , enter button

  7. Use the arrows to navigate to <Freq> .
  8. Indicate that the frequencies are in [L2] .

    2nd button , [L2] , enter button

  9. Go back to access other graphs.

    2nd button , [STAT PLOT]

  10. Be sure to deselect or clear all equations before graphing using the method mentioned above.
  11. View the box plot.

    graph button , [STAT PLOT]

Linear regression

Sample data

The following data is real. The percent of declared ethnic minority students at De Anza College for selected years from 1970 - 1995 was:

The independent variable is "Year," while the independent variable is "Student Ethnic Minority Percent."
Year Student Ethnic Minority Percentage
1970 14.13
1973 12.27
1976 14.08
1979 18.16
1982 27.64
1983 28.72
1986 31.86
1989 33.14
1992 45.37
1995 53.1

Student ethnic minority percentage

A scatterplot of the ethnic minority percentages listed in the above chart, plotted from 1960 to 2000.
By hand, verify the scatterplot above.
The TI-83 has a built-in linear regression feature, which allows the data to be edited.The x-values will be in [L1] ; the y-values in [L2] .

    To enter data and do linear regression:

  1. ON Turns calculator on

    on button

  2. Before accessing this program, be sure to turn off all plots.
    • Access graphing mode.

      2nd button , [STAT PLOT]

    • Turn off all plots.

      four button , enter button

  3. Round to 3 decimal places. To do so:
    • Access the mode menu.

      mode button , [STAT PLOT]

    • Navigate to <Float> and then to the right to <3> .

      down button right button

    • All numbers will be rounded to 3 decimal places until changed.

      enter button

  4. Enter statistics mode and clear lists [L1] and [L2] , as describe above.

    stat button , four button

  5. Enter editing mode to insert values for x and y.

    stat button , enter button

  6. Enter each value. Press enter button to continue.

    To display the correlation coefficient:

  1. Access the catalog.

    2nd button , [CATALOG]

  2. Arrow down and select <DiagnosticOn>

    down button ... , enter button , enter button

  3. r and r 2 will be displayed during regression calculations.
  4. Access linear regression.

    stats button right button

  5. Select the form of y a b x

    eight button , enter button

The display will show:


  • y a b x
  • a 3176.909
  • b 1.617
  • r 2 0.924
  • r 0.961

This means the Line of Best Fit (Least Squares Line) is:

  • y 3176.909 1.617 x
  • Percent 3176.909 1.617 (year #)
The correlation coefficient r 0.961

    To see the scatter plot:

  1. Access graphing mode.

    2nd button , [STAT PLOT]

  2. Select <1:plot 1> To access plotting - first graph.

    enter button

  3. Navigate and select <ON> to turn on Plot 1.

    <ON> enter button

  4. Navigate to the first picture.
  5. Select the scatter plot.

    enter button

  6. Navigate to <Xlist>
  7. If [L1] is not selected, press 2nd button , [L1] to select it.
  8. Confirm that the data values are in [L1] .

    <ON> enter button

  9. Navigate to <Ylist>
  10. Select that the frequencies are in [L2] .

    2nd button , [L2] , enterbutton

  11. Go back to access other graphs.

    2nd button , [STAT PLOT]

  12. Use the arrows to turn off the remaining plots.
  13. Access window button to set the graph parameters.
    • X min 1970
    • X max 2000
    • X scl 10 (spacing of tick marks on x-axis)
    • Y min 0.05
    • Y max 60
    • Y scl 10 (spacing of tick marks on y-axis)
    • X res 1
  14. Be sure to deselect or clear all equations before graphing, using the instructions above.
  15. Press graph button to see the scatter plot.

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Collaborative statistics for mt230. OpenStax CNX. Aug 18, 2011 Download for free at http://legacy.cnx.org/content/col11345/1.2
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