Calculator Tip Sheet - kelly's math stuff
Calculator Tip Sheet
General Tips
CLEAR will clear the home screen
To access a function printed in 2nd color on the face of the calculator,
first push “2nd” key then the desired key.
To access a function printed in green on the face of the calculator,
first push “ALPHA” (green key) then the desired key.
Use the blue arrow keys to maneuver through the menus.
When working on a list:
Use ENTER or down arrow to input a value
Use up/down arrows to move one cell at a time through the list
Use ALPHA up/down arrows to move one page at a time through the list
Use 2nd Quit to exit the edit screen
To enter a list of data:
STAT
EDIT
Enter Data
To clear a list:
arrow up until the list name (ex L1) is highlighted
CLEAR
ENTER
To rearrange a list:
STAT
EDIT
Put list in ascending order Put list in descending order Clear data from list
SORTA SORTD ClrList
list name list name list name
To find min, max, mean, median, sum, product, standard deviation, variance
2nd
STAT (LIST)
MATH
Select function
L1
Calculator Tip Sheet
Chapter 2 & 3
To find the mean, median, quartiles, standard deviation for a single list:
TI 83/older 84 Newer TI84
STAT STAT
CALC CALC
1-Var Stats 1-Var Stats
L1 List: L1
FreqList: leave blank
Calculate (enter)
To find a grouped mean or standard deviation (from a frequency table):
TI 83/older 84 Newer TI84
Enter class midpoints in L1 Enter class midpoints in L1
Enter frequencies in L2 Enter frequencies in L2
STAT STAT
CALC CALC
1-Var Stats 1-Var Stats
L1 , L2 List: L1
FreqList: L2
Calculate (enter)
To generate a histogram for a frequency table:
2nd
STAT PLOT
1 (to select plot 1)
ON (be sure STAT PLOT 2 & 3 are set to off)
Select Histogram
ENTER
Xlist:L1
Freq:L2
GRAPH
To adjust the window for a graph:
WINDOW
Set x min
Set x max
Set x scale
Set y min
Set y max
Set y scale
Leave resolution at 1
Calculator Tip Sheet
Chapter 4
ONE TIME SET UP
To turn “diagnostics” on and be able to see r and r2
2nd 0 (zero)
D (the x-1 button)
Diagnostics on
Enter 2x
To calculate a, b, r, r2:
TI 83/older 84 Newer TI84
Stat Stat
Edit Edit
Enter x’s in L1 and y’s in L2 Enter x’s in L1 and y’s in L2
2nd Quit 2nd Quit
Stat Stat
>Calc >Calc
4:linreg 4:linreg
L1, L2 Xlist: L1
Ylist: L2
FreqList: leave blank
Store RegEQ: leave blank
Calculate
To generate a scatter plot for paired data:
2nd
STAT PLOT
1 (to select plot 1)
ON (be sure STAT PLOT 2 & 3 are set to off)
Select Scatter plot (very first option)
ENTER
Xlist:L1
Freq:L2
Once the STAT PLOT is set up once you do not need to repeat.
With data already entered in L1 and L2
Zoom (middle of very top row on calculator)
9:zoomstat
Calculator Tip Sheet
Chapter 6
To find the mean & standard deviation of a probability distribution:
TI 83/older 84 Newer TI84
Enter x’s in L1 Enter x’s in L1
Enter P(x)’s in L2 Enter P(x)’s in L2
STAT STAT
CALC CALC
1-Var Stats 1-Var Stats
L1 , L2 List: L1
FreqList: L2
Calculate (enter)
To find P(x = #) for a binomial distribution:
TI 83/older 84 Newer TI84
2nd 2nd n = number of trials
DISTR DISTR p = probability success
binompdf binompdf # = value asked about
n, p, # trials: n
p: p
x value: #
Paste
Enter
To find P(x = range of #’s) for a binomial distribution:
TI 83/older 84 Newer TI84
2nd 2nd n = number of trials
STAT (LIST) STAT (LIST) p = probability success
MATH MATH # = values asked about
5:sum 5:sum
2nd 2nd
DISTR DISTR
binompdf binompdf
n, p, {#1, #2, #3…..} trials: n
p: p
x value: {#1, #2, #3…..}
Paste
Enter
To find P(x < #) for a binomial distribution:
TI 83/older 84 Newer TI84
2nd 2nd n = number of trials
DISTR DISTR p = probability success
binomcdf binomcdf # = largest value
n, p, # – 1 trials: n in x list
p: p
x value: # – 1
Paste
Enter
Calculator Tip Sheet
Chapter 7
To find the probability of x being in a specified range:
TI 83/older 84 Newer TI84
2nd 2nd
DISTR DISTR
normalcdf normalcdf
(lower, upper, [pic] lower: lower bound of range
upper: upper bound of range
[pic]: mean
[pic]: standard deviation
Paste
Enter
To find the probability of [pic]being in a specified range, for a group of size n:
TI 83/older 84 Newer TI84
2nd 2nd
DISTR DISTR
normalcdf normalcdf
(lower, upper, [pic],[pic] lower: lower bound of range
upper: upper bound of range
[pic]: mean
[pic]: [pic] standard error
Paste
Enter
To find a score at for specified percentile:
TI 83/older 84 Newer TI84
2nd 2nd
DISTR DISTR
invnorm invnorm
(percentile, [pic] area: percentile (% to the left)
[pic]: mean
[pic]: standard deviation
Paste
Enter
To enter positive infinity:
2nd comma key to access E (scientific notation) 99
To enter negative infinity:
(–) 2nd comma key to access E (scientific notation) 99
Calculator Tip Sheet
Chapter 8
To determine a confidence interval for the population mean, with n < 30, [pic] unknown :
STAT
TESTS
8: Tinterval
Stats
Enter mean, standard deviation, sample size, confidence level
Calculate
To determine a confidence interval for the population mean, with n > 30 or [pic] known:
STAT
TESTS
7: Zinterval
Stats
Enter population standard deviation, mean, sample size, confidence level
Calculate
To determine a confidence interval for the population proportion:
STAT
TESTS
A: 1 PropZInt
Enter x, n, and confidence level x = yes’s n = everyone
Calculate
Calculator Tip Sheet
Chapter 9
To conduct a hypothesis test for the population mean, with n < 30, [pic] unknown :
STAT
TESTS
2: t-test
Stats
Enter hypothesized mean, sample mean, standard deviation, sample size
Symbol in your H1 < > or [pic]
Calculate
To conduct a hypothesis test for the population mean, with n > 30 or [pic] known:
STAT
TESTS
1: z-test
Stats
Enter hypothesized mean, population standard deviation, mean, sample size
Symbol in your H1 < > or [pic]
Calculate
To conduct a hypothesis test for the population proportion:
STAT
TESTS
5: 1 propzint
Enter hypothesized P, x, n
Symbol in your H1 < > or [pic]
Calculate
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