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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:

    Linreg

  • 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

Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
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
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
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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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