# 14.4 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: 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: , [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.

what is the stm
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?
what is a peer
What is meant by 'nano scale'?
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
what is Nano technology ?
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?
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
why we need to study biomolecules, molecular biology in nanotechnology?
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
why?
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?
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
what does nano mean?
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?
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
it is a goid question and i want to know the answer as well
Maciej
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
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
how did you get the value of 2000N.What calculations are needed to arrive at it
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