MATH 1530
Elementary Probability and Statisitics
Graphing Calculator Instructions
WARNING:  This is a 20 page printed document!  To print only the part that applies to YOUR calculator, COPY and PASTE the applicable portion to a word processing program.  Print that document!
Casio fx-7700  Casio fx-7700GE    Casio CFX-9800G Casio CFX-9850G
TI - 81

Steps to follow to find the mean and standard deviations of a frequency table (or individual data).

1. ON

2. 2nd

3. MATRIX (to get into STAT mode)

4.  >  >    (cursor over twice using arrow keys to DATA)

5.   2      (CLRSTAT: clears any previous data; THIS IS A VERY IMPORTANT STEP which must be completed every time you start with new data.)

6. ENTER   (on home screen now)

7. Repeat steps 2 through 4 to get back to DATA in STAT mode

8. ENTER    (#1: to get to EDIT screen to input data values

x's are the data values or class marks (class midpoints)

y's are the frequencies of each value; leave as 1 if individual data)

9.  Put the class marks (class midpoints) or individual values in for x's and press ENTER after each one

10. Put the frequency in for the y's and press ENTER after each one

Once ALL the data values and frequencies are in, DO THE FOLLOWING:

11. 2nd

12. MATRIX

13. ENTER   (#1 is 1-variable statistics you want to compute)

14. ENTER   (on the home screen now; you will get the mean and standard               deviations for the data)

Steps to follow to find the linear correlation coefficient and the linear regression equation.

1. Input the paired data following steps #1 - 10 above. The x-value will be the first of the 'paired' values in the number pair (instead of the class mark or individual data value) and the y-value will be the second of the 'paired' values in the number pair (instead of the frequency).

2.   2nd

3.   STAT

4.   Press 2    (LinReg; puts you on the home screen)

5.   ENTER    (computes the linear regression equation y = bx + a

and the linear correlation coefficient value r

TI-82

Steps to follow to find the mean and the standard deviations of a frequency table or individual data.

1. ON

2. STAT

3.  >    (arrow right one time to get to CALC)

4.  3 , then ENTER    (for SET-UP)

5. Under 1-Var Stats

Xlist: highlight L1 (usually already highlighted; is the calculator's default)
NEXT STEP IS VERY IMPORTANT!
Freq:  highlight L2 (if you have a frequency table;  if you have raw data, highlight 1 - OR leave as L2 and put a '1' for the frequency of each data value; see #10 below))
6. STAT

7. ENTER    (#1 EDIT... puts you on the list screen)

8. If data appears in L1 and/or L2 columns, do the following:

Arrow up until L1 is highlighted; press CLEAR, then ENTER; all data in L1 column should now be deleted.

Complete the same for the L2 column.

9.   Input the class marks (class midpoints) or individual data values in the L1 column, pressing ENTER after each value

10.  Input the corresponding frequencies in L2, pressing ENTER after each value

(use a '1' if you have individual data values unless you have Set-up Freq highlighted as a '1'; see Step #5 above)

IMPORTANT!! The TI-82 will NOT allow a frequency of more than 99.

Therefore, if you have a frequency, for example, of 104, you would have to put the data value in the L1 column TWICE - once with a frequency of 99 and again with a frequency of 5 - to give you a total of 104 of that data value.

11.  STAT

12.  >    (arrow right one time to CALC)

13.  ENTER   (#1 is the 1-VAR STATS you want to compute)

14.  ENTER   (on the home screen now; the mean and standard deviations will be computed for the frequency table or individual data values)

Steps to follow to find the linear correlation coefficient and the linear regression equation.

1. ON

2. STAT

3.  >    (arrow right one time to get to CALC)

4.  3 , then ENTER    (for SET-UP)

5. Under 2-Var Stats

Xlist: highlight L1

Ylist: highlight L2

Freq: highlight 1

(Each of these is the calculator's default settings and will already be highlighted unless previously changed.)

6. Follow steps #6 - 8 above to clear any previous data in the L1 and L2 columns.

7. In L1 input the first value of the paired data (usually called the x-value)

8. In L2 input the second values of the paired data (usually called the y-value)

Make sure each number pair is correctly placed on the same line.
9.   STAT

10.  >   (arrow right once to CALC)

11.  Press 5  (chooses LinReg (ax+b); puts you on the home screen)

12.  ENTER  (computes the linear regression equation y = ax + b   and the linear correlation coefficient value  r.

TI-83 and TI-83 Plus

Steps to follow to find the mean and the standard deviations of a frequency table or individual data.

1. ON

2. STAT

3. ENTER    (#1 Edit... will put you on the List Screen)

4. If data appears in L1 and/or L2 columns, do the following:

Arrow up until L1 is highlighted; press CLEAR, then ENTER; all data in L1 column should now be deleted.

Complete the same for the L2 column.

5.  Input the class marks (class midpoints) or individual data values in the L1 column, pressing ENTER after each value

6.  Input the corresponding frequencies in L2, pressing ENTER after each one  (use a '1' if you have individual data values)

7.  STAT

8.  >   (arrow right one time to CALC)

9.  ENTER   (#1 is the 1-VAR STATS you want to compute)

10.  You should be on the home screen now with '1-Var Stats' on a line by itself.

Now press the following:   2nd    1   ,(the comma)   2nd    2

The home screen line should now have:  1-Var Stats L1,L2

(the 2 will be on the next line; that's OK)

THIS IS A VERY IMPORTANT STEP!

11.  ENTER    (the mean and standard deviations will be computed for the frequency table or individual data values)

Steps to follow to find the linear correlation coefficient and the linear regression equation.

1. Press   2nd   then    Catalog (the '0' key)

2. Arrow down until arrow is next to    DiagnosticOn

3. Press   Enter    then    Enter    again. Homescreen should say

DiagnosticOn

Done

4. Follow steps #1 - 4 above to clear any previous data in the L1 and L2 columns

5. In L1, input the first value of the paired data (usually called the x-value)

6. In L2, input the second values of the paired data (usually called the y-value)

Make sure each number pair is correctly placed on the same line.
7.   STAT

8.  >   (arrow right once to CALC)

9.  Press 4  (chooses LinReg (ax+b); puts you on the home screen)

10.  ENTER  (computes the linear regression equation y = ax + b   and the linear correlation coefficient value  r.

TI-85

Steps to follow to find the mean and the standard deviations of a frequency table or individual data.

1. ON

2. STAT

3. F2  (for EDIT)

4. F3  (to give xlist NAME = L1)

5. ENTER

6. F4    (to give ylist NAME = L2)

7. ENTER

8. F5    (to clear any past stat values)

9. Input first class mark (class midpoint) for x1 ,then press ENTER

10. Input first class frequency for y1 ,then press ENTER

11. Repeat steps 9 and 10 until all values have been entered.

12. 2ND

13.  F1   (for calc mode)

14. ENTER

15. ENTER

16.  F1  (for 1-VAR; mean and standard deviations will be computed)

Steps to follow to find the linear correlation coefficient and the linear regression equation.

1. Follow Steps #1-15 above (The x-values will be the first number of the data pairs; the y-values will be the second number of the data pairs.)

2. Press F2    (for LINR - linear regression - computations)

(Do NOT confuse this with  F3  - LNR - which is the logarithmic regression command)

The values given will be the components of the equation: y = bx + a   (where 'b' is the slope of the equation and 'a' is the y-intercept of the equation)

The linear correlation coefficient is the value stated for  'corr'.

TI-86

Steps to follow to find the mean and the standard deviations of a frequency table or individual data.

1. ON

2. To SET UP THE CUSTOM MENU, do the following:

a) Press the yellow  2nd   key, then  CUSTOM   (to access the CATLG-VARS menu)

b) Press  MORE, MORE   (STAT should be above F4)

c) Press F4   (to access statistical commands)

d) Arrow down until  xStat   has the arrow beside it.

e) Press F3   (CUSTM: to place the sStat command in your CUSTOM list)

f) Your CUSTOM list should be up now (places to store commands you need to use often); Press the position (F1, F2, etc.) where you want to store the  xStat  command.

g) Arrow up to   fStat  in the statistical commands list

h) Press the position where you want to store this command (F1, F2, etc.) in the CUSTOM list.

i) Arrow down to   yStat   in the statistical list

j) Press the position where you want to store this command (F1,F2, etc.) in your CUSTOM list.

YOU SHOULD NOW HAVE THE THREE STATISTICAL COMMANDS:

xStat    fStat     yStat          IN YOUR CUSTOM LIST.

You will not have to complete these first two steps ever again, unless your calculator is reset to the default settings, batteries run down, etc.

*Press 2nd EXIT (Quit) to get out of the Catalog-Vars menu.*

3.  Press the yellow   2nd    key.

4.  Press the   +   key.    (to access the STAT mode)

5.  F2   (to access the EDIT menu)

6. If your xStat, yStat, and fStat lists have values already in them, you should delete those values before you begin a new problem. Arrow to the top of the list until the heading of the list is highlighted, press   CLEAR  , then  ENTER.

7. Input your class marks (class midpoints) or individual data values in the xStat list (first column), pressing ENTER after each.

8. Input the FREQUENCY of each data value in the fStat list (3rd column !!). You can input a '1' if you have individual data values. (There are other ways to handle this, but to keep the following directions simple, we will go this route.)

9.  EXIT   (THIS IS A VERY IMPORTANT STEP!!)

10. Press   2nd,   then   +      (to access the STAT menu again)

11.   F1    (to access the CALC menu)

12.  F1    (again, to access the OneVa - one variable command)

13.  Press  CUSTOM

14.  Press the position (F1, F2, etc.) where you have the  xStat  command stored.

15.  Press the comma key   (,)

16.  Press the position (F1, F2, etc.) where you have the  fStat  command stored.

17.  (The home screen line should now read:  OneVar  xStat,fStat  )   Press ENTER

The screen should now show the mean, standard deviations, and other statistical values.

Steps to follow to find the linear correlation coefficient and the linear regression equation.

1. If you have not previously set up the CUSTOM menu, follow steps #1 and 2 above.

2. Follow steps #3 - 6 above.

3. Input the first value of each data pair in the xStat   list, pressing ENTER after each.

4. Input the second value of each data pair in the yStat    list, pressing ENTER after each. (Make sure each number pair is correctly placed on the same line. )

5. EXIT   (THIS IS A VERY IMPORTANT STEP!!)

6. Press   2nd,   then   +      (to access the STAT menu again)

11.   F1    (to access the CALC menu)

12.  F3     (to access the LinR- linear regression - command;

(Do NOT confuse this with  F4  - LnR - which is the logarithmic regression command)

13.  Press  CUSTOM

14.  Press the position (F1, F2, etc.) where you have the  xStat  command stored.

15.  Press the comma key   (,)

16.  Press the position (F1, F2, etc.) where you have the  yStat  command stored.

17.  (The home screen line should now read:  LinR  xStat,yStat  )   Press ENTER

The home screen should now have the linear regresssion equation components:

y = a + bx  (where 'a' is the y-intercept and 'b' is the slope). The linear correlation coefficient is the value stated for  'corr'.

Casio fx-7700

Steps to follow to find the mean and the standard deviations of a frequency table or individual data.

1. AC

2. MODE

3.   X    (the times - muliplication - sign)

4. F2    (for edit)

5. F3    (to erase any previous data)

{F1  yes     or     F6   no}
6. Type first class mark (class midpoint) or individual data, then press F3 (the semi-colon), then type the frequency (use a 1 if individual data), then press F1.

{F1 puts the data into a frequency table that you cannot see yet.}

Repeat step 6 until all data values are in.

7. F2    (to review data)

8. PRE   (goes back to PREvious screen)

9. F4    (press the appropriate key for the mean or standard deviation)

10. EXE

To go back to computational mode:   1. MODE

2.  +  (the plus - addition - sign)

Steps to follow to find the linear correlation coefficient and the linear regression equation.

Under Construction

Casio fx-7700GE

Steps to follow to find the mean and the standard deviations of a frequency table or individual data.

1. AC

2.  Press 3

3. Go to the Set Up by pressing: SHIFT and MENU

The display should look like the following: GRAPH TYPE: REC

DRAW TYPE: CON

STAT DATA: STO

STAT GRAPH: NON-

M-DISP/COPY: M-DP

If the display does not look like this, cursor down and change the particular line(s).

4. EXIT (The next display just indicates what you have in your set up.)

You are now ready to input you data by:

5. F2    (for edit)

6. F3    (to erase any previous data)

{F1  yes     or     F6   no}
7. Type first class mark (class midpoint) or individual data, then press F3 (the semi-colon), then type the frequency (use a 1 if individual data), then press F1.

{F1 puts the data into a frequency table that you cannot see yet.}

Repeat step 7 until all data values are in.

8. F2    (to review data)

9. EXIT   (goes back to previous screen)

10. F4    (press the appropriate key for the mean or standard deviation)

11. EXE

To go back to computational mode:   1.  MENU

2.  Press 1

3.  EXE

Steps to follow to find the linear correlation coefficient and the linear regression equation.

1. AC

2.  Press 4

3. Go to SET UP by either pushing F6 (if you see SET in the lower right hand corner of the screen) or by SHIFT and MENU. Make the display look like the following:

The display should look like the following:       GRAPH TYPE: REC    [F1]

DRAW TYPE: PLT      [F2]

STAT DATA: STO      [F1]

STAT GRAPH: NON-   [F2]

REG MODEL: LIN     [F1]

M-DISP/COPY: M-DP   [F1]

If the display does not look like this, cursor down and change the particular line(s).

4. EXIT

You are now ready to input you data by:

5. F2    (for edit)

6. F3    (to erase any previous data)

{F1  yes     or     F6   no}
7. Type: the x-value, then press F3 (the semi-colon), then type the y-value, then press F1.

Repeat step 7 until all data values are in.

8. [F6] REG    To find the linear regression equation

9.   [F1]  [EXE]   "A" value

10. [F2]  [EXE]    "B" value

These values give you the equation:   y = "B"x + "A"     Remember this!

11.  [F3]  [EXE]   r value (correlation coefficient)

To check the values you have entered, press [EXIT] once, then [F2] for edit.

[F1]    DEL   You can delete one line of data by pushing this key.

The value that is highlighted will delete the whole row.

[F2]    INS   You can insert data value(s) that you might have omitted by pressing

this key the appropriate number of times.

To input a new data set, go back to step 5.

Casio CFX-9800G

Steps to follow to find the mean and the standard deviations of a frequency table or individual data.

1. AC/ON

2. Press 3

3. Go to SET UP by either pushing F6 (if you see SET in the lower right hand corner of the screen) or by SHIFT and MENU. Make the display look like the following:

S-data: STO

S-graph: NON-

G-type: REC/CON

Angle: Deg

Display: Nrml or Nrm2

M-D/Cpy: M-Disp

If the display does not look like this, cursor down and change the particular line(s).

4. EXIT (The next display just indicates what you have in your set up.)

You are now ready to input you data by:

5. F2    (for edit)

6. F3    (to erase any previous data)

{F1  yes     or     F6   no}
7. Type first class mark (class midpoint) or individual data, then press F3 (the semi-colon), then type the frequency (use a 1 if individual data), then press F1.

{F1 puts the data into a frequency table that you cannot see yet.}

Repeat step 7 until all data values are in.

8. F2    (to review data)

9. EXIT   (goes back to previous screen)

10. F4    (press the appropriate key for the mean or standard deviation)

11. EXE

To go back to computational mode:   1.  MENU

2.  Press 1

3.  EXE

Steps to follow to find the linear correlation coefficient and the linear regression equation.

1. AC/ON

2. Press 4

3. Go to SET UP by either pushing F6 (if you see SET in the lower right hand corner of the screen) or by SHIFT and MENU. Make the display look like the following:

REG: LIN         [F1]

S-data: STO        [F1]

S-graph: NON-      [F2]

S-plot:  Blue       [F1]

G-type: REC/PLT    [F6]

Angle: Deg         [F1]

Display: Nrm2      [F3] twice

If the display does not look like this, cursor down and change the particular line(s).

4. EXIT (The next display just indicates what you have in your set up.)

You are now ready to input you data by:

5. F2    (for edit)

6. F3    (to erase any previous data)

{F1  yes     or     F6   no}
7. Type the x-value, then press F3 (the semi-colon), then type the y-value, then press F1.

{F1 puts the data into a table that you cannot see yet.}

Repeat step 7 until all data values are in.

8.   [F6] REG    To find the linear regression equation

9.   [F1]  [EXE]   "A" value

10. [F2]  [EXE]    "B" value

These values give you the equation:   y = "B"x + "A"     Remember this!

11.  [F3]  [EXE]   r value (correlation coefficient)

To check the values you have entered, press [EXIT] once, then [F2] for edit.

[F1]    DEL   You can delete one line of data by pushing this key.

The value that is highlighted will delete the whole row.

[F2]    INS   You can insert data value(s) that you might have omitted by pressing

this key the appropriate number of times.

To input a new data set, go back to step 5.

Casio CFX-9850G

Steps to follow to find the mean and the standard deviations of a frequency table or individual data.

1. AC/ON

2. Press 2

3. Go to SET UP by either pushing F6 (if you see SET in the lower right hand corner of the screen) or by SHIFT and MENU. Make the display look like the following:

Stat Wind: Auto

Graph Func: On

Background: None

Plot/Line: Blue

Angle: Deg

Coord: On

Grid: Off

Axes: On

Label: On

Display: Norml

To move up and down in this display, press the arrow up or arrow down keys.

4. EXIT

5.  >  (arrow right once) Get to DEL-A at F4 and use to clear any data values.This will only clear data values in the highlighted column.

6. Put in all your data values or class marks (class midpoints) in LIST 1 by pressing EXE after each entry.

7.  >   (arrow right once)

8. In LIST 2 input the frequency, pressing EXE after each entry.

9. After all values have put in, press the right arrow key (>) until you see CALC which should be right above F2. Press F2 and then F1 for 1VAR. This will give you the mean, standard deviation, and more information if you cursor down.

10. To put in different data sets, press EXIT twice until you get back to the right arrow that is over F6. Begin with step 5 above.

To go back to computational mode:   1.  MENU

2.  Press 1

3.  EXE

Steps to follow to find the linear correlation coefficient and the linear regression equation.

1. AC/ON

2. Press 2

3. Go to SET UP by either pushing F6 (if you see SET in the lower right hand corner of the screen) or by SHIFT and MENU. Make the display look like the following:

Stat Wind: Auto

Graph Func: On

Background: None

Plot/Line: Blue

Angle: Deg

Coord: On

Grid: Off

Axes: On

Label: On

Display: Norml

To move up and down in this display, press the arrow up or arrow down keys.

4. EXIT

5.  >  (arrow right once) Get to DEL-A at F4 and use to clear any data values.This will only clear data values in the highlighted column.

6. Put in all your x-values in LIST 1 by pressing EXE after each entry.

7.  >   (arrow right once)

8. In LIST 2 input the y-values, pressing EXE after each entry.

9. After all values have put in, press the right arrow key (>) until you see CALC which should be right above F2. Press F2 and then F3 for REG. This will give you another menu. For linear regression, press [F1] key {X} and you should have the following display.

DISPLAY    LinearReg

a =

b =

r =

y = ax + b

10. To put in different data sets, press EXIT twice until you get back to the right arrow that is over F6. Begin with step 5 above.

To go back to computational mode:   1.  MENU

2.  Press 1

3.  EXE

Thanks for Professor Brenda Ammons for assistance in developing this website.

Revised:  November 21, 2002

cbs