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Collaborative statistics for mt
Appendix
Notes for the ti-83, 83+, 84
To deselect equations:
Access the list of equations.
Select each equal sign (=).
Continue, until all equations are deselected.
To clear equations:
Access the list of equations.
Use the arrow keys to navigate to the right of each equal sign (=) and clear them.
Repeat until all equations are deleted.
To draw default histogram:
Access the ZOOM menu.
Select
<9:ZoomStat>
The histogram will show with a window automatically set.
To draw custom histogram:
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)
${X}_{\mathrm{res}}=1$
Access
to see the histogram.
To draw box plots:
Access graphing mode.
,
[STAT PLOT]
Select
<1:Plot 1>
to access the first graph.
Use the arrows to select
<ON>
and turn on Plot 1.
Use the arrows to select the box plot picture and enable it.
Use the arrows to navigate to
<Xlist>
If "L1" is not selected, select it.
,
[L1]
,
Use the arrows to navigate to
<Freq>
.
Indicate that the frequencies are in
[L2]
.
,
[L2]
,
Go back to access other graphs.
,
[STAT PLOT]
Be sure to deselect or clear all equations before graphing using the method mentioned above.
View the box plot.
,
[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
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:
ON Turns calculator on
Before accessing this program, be sure to turn off all plots.
Access graphing mode.
,
[STAT PLOT]
Turn off all plots.
,
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.
Enter statistics mode and clear lists
[L1]
and
[L2]
, as describe above.
,
Enter editing mode to insert values for x and y.
,
Enter each value. Press
to continue.
To display the correlation coefficient:
Access the catalog.
,
[CATALOG]
Arrow down and select
<DiagnosticOn>
... ,
,
$r$ and
$r^{2}$ will be displayed during regression calculations.
Access linear regression.
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:
$y=-3176.909+1.617x$
$\mathrm{Percent}=-3176.909+1.617\mathrm{(year\; \#)}$ The correlation coefficient
$r=0.961$
To see the scatter plot:
Access graphing mode.
,
[STAT PLOT]
Select
<1:plot 1>
To access plotting - first graph.
Navigate and select
<ON>
to turn on Plot 1.
<ON>
Navigate to the first picture.
Select the scatter plot.
Navigate to
<Xlist>
If
[L1]
is not selected, press
,
[L1]
to select it.
Confirm that the data values are in
[L1]
.
<ON>
Navigate to
<Ylist>
Select that the frequencies are in
[L2]
.
,
[L2]
,
Go back to access other graphs.
,
[STAT PLOT]
Use the arrows to turn off the remaining plots.
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)
${X}_{\mathrm{res}}=1$
Be sure to deselect or clear all equations before graphing, using the instructions above.
Press
to see the scatter plot.
Questions & Answers
how can chip be made from sand
is this allso about nanoscale material
Almas
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
where is the latest information on a no technology how can I find it
William
where we get a research paper on Nano chemistry....?
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
what is variations in raman spectra for nanomaterials
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
what about nanotechnology for water purification
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
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
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 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
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
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
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
how did you get the value of 2000N.What calculations are needed to arrive at it
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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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