# 13.6 Notes for the ti-83, 83+, 84 calculator  (Page 2/3)

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## To deselect equations:

1. Access the list of equations.

2. Select each equal sign (=).

3. Continue, until all equations are deselected.

## To clear equations:

1. Access the list of equations.

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

3. Repeat until all equations are deleted.

## To draw default histogram:

1. Access the ZOOM menu.

2. Select <9:ZoomStat>

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

## To draw custom histogram:

1. Access to set the graph parameters.
• ${X}_{\mathrm{min}}=-2.5$
• ${X}_{\mathrm{max}}=3.5$
• ${X}_{\mathrm{scl}}=1$ (width of bars)
• ${Y}_{\mathrm{min}}=0$
• ${Y}_{\mathrm{max}}=10$
• ${Y}_{\mathrm{scl}}=1$ (spacing of tick marks on y-axis)
• ${X}_{\mathrm{res}}=1$
2. Access to see the histogram.

## To draw box plots:

1. Access graphing mode.

, [STAT PLOT]

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

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

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

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

, [L1] ,

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

, [L2] ,

9. Go back to access other graphs.

, [STAT PLOT]

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

, [STAT PLOT]

## 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:

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
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

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

, [STAT PLOT]

• Turn off all plots.

,

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

, [STAT PLOT]

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

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

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

,

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

,

6. Enter each value. Press to continue.

## To display the correlation coefficient:

1. Access the catalog.

, [CATALOG]

2. Arrow down and select <DiagnosticOn>

... , ,

3. $r$ and $r^{2}$ will be displayed during regression calculations.
4. Access linear regression.

5. Select the form of $y=a+bx$

,

The display will show:

## Linreg

• $y=a+bx$
• $a=-3176.909$
• $b=1.617$
• $r^{2}=0.924$
• $r=0.961$

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

• $y=-3176.909+1.617x$
• $\mathrm{Percent}=-3176.909+1.617\mathrm{\left(year #\right)}$
The correlation coefficient $r=0.961$

## To see the scatter plot:

1. Access graphing mode.

, [STAT PLOT]

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

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

<ON>

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

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

<ON>

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

, [L2] ,

11. Go back to access other graphs.

, [STAT PLOT]

12. Use the arrows to turn off the remaining plots.
13. Access to set the graph parameters.
• ${X}_{\mathrm{min}}=1970$
• ${X}_{\mathrm{max}}=2000$
• ${X}_{\mathrm{scl}}=10$ (spacing of tick marks on x-axis)
• ${Y}_{\mathrm{min}}=-0.05$
• ${Y}_{\mathrm{max}}=60$
• ${Y}_{\mathrm{scl}}=10$ (spacing of tick marks on y-axis)
• ${X}_{\mathrm{res}}=1$
14. Be sure to deselect or clear all equations before graphing, using the instructions above.
15. Press 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 .?
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
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
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
Daniel
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
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
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
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
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.
Tarell
what is the actual application of fullerenes nowadays?
Damian
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.
Tarell
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.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
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.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
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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