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AP Statistics Calculator Command Cheat Sheet, Cheat Sheet of Statistics

D´Youville College (DYC)Statistics

Good review cheat sheet on Statistics Calculator Commands

Typology: Cheat Sheet

2019/2020
On special offer
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Uploaded on 10/09/2020

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AP!STATISTICS!CALCULATOR!COMMAND!CHEAT!SHEET!
!
What%you’re%trying%to%do:%
!
Enter!list(s)!of!data!
!
Plot!data!on!scatterplot,!boxplot,!histogram,!etc!
!
!
!
Summary!statistics!for!a!data!set!(mean,!standard!
deviation,!Q1,!Q2,!Q3,!etc)!
!
!
!
Find!area!under!a!Normal!curve!between!two!values!
!
!
To!find!an!x!value!that!captures!a!certain!percentage!
of!the!area!under!the!Normal!curve!!
!
!
Linear!Regression!Line!
!
!
!
Residuals!!(as!a!list)!
!
!
!
Histogram!of!the!Residuals!!
!
!
!
!
Non-!Linear!relationships!(exponential,!power)!
!
!
!
!
!
!
!
Binomial!Probability!(of!one!precise!number)!
Ex.!If!I!roll!a!die!ten!times,!what!is!the!probability!I!get!
a!6!exactly!3!times?!
!
!
!
!
Calculator%Command:%
!
STAT.!EDIT.!
!
2ND.!STATPLOT.!
(you’ll!need!to!have!entered!data!in!L1,!L2,!or!both)!
!
!
STAT.!CALC.!1-VAR!STATS!L1!
(remember!to!scroll!down!once!you!get!your!results.!!
The!quartiles!are!listed!below!what!you!see!on!your!
screen)!
!
DISTR!(2nd!vars).!Normalcdf.!
Enter!(lower!bound,!upper!bound,!mean,!sd)!
!
DISTR.!invNorm!
Enter!(area!under!curve!to!left!of!x!value,!mean,!SD)!
!
!
First!you!need!to!enter!data!in!L1!and!L2.!!!
STAT.!CALC.!LinReg!(a+bx)!(L1,!L2,!Y1)!
(If!you!have!a!newer!calc,!put!STOREREGEQ:!Y1)!
!
Create!L3!in!which!you!type!in!your!regression!
equation!(using!L1!as!the!x!value).!!Then!create!L4!
which!is!L2-L3!
!
Use!L4!(from!directions!above)!and!create!a!
histogram!
STATPLOT.!!ON.!Type:!Histogram.!!XList:!L4.!!Open!
“graph”!
!
If!the!relationship!is!exponential,!take!log!of!x!values!
(or!ln),!then!enter!data!and!find!the!least!squares!
regression!line.!
If!the!relationship!is!a!power!model,!take!log!of!(or!ln)!
x!and!y!values!and!enter!data!to!find!least!squares!
regression!line.!!!
!
!
DISTR.!BINOMPDF.!(#trials,!probability!of!success,!
number!of!successes)!
Ex.!Binompdf!(10,!.166666667,!3)!(this!is!for!the!die!
example)!.!!Remember!that!the!P!in!PDF!stands!for!
PRECISE.!!We’re!only!interested!in!if!there!are!exactly!
3!successes.!!!
!
pf2
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AP STATISTICS CALCULATOR COMMAND CHEAT SHEET

What you’re trying to do: Enter list(s) of data Plot data on scatterplot, boxplot, histogram, etc Summary statistics for a data set (mean, standard deviation, Q1, Q2, Q3, etc) Find area under a Normal curve between two values To find an x value that captures a certain percentage of the area under the Normal curve Linear Regression Line Residuals (as a list) Histogram of the Residuals Non- Linear relationships (exponential, power) Binomial Probability (of one precise number) Ex. If I roll a die ten times, what is the probability I get a 6 exactly 3 times? Calculator Command: STAT. EDIT. 2 ND. STATPLOT. (you’ll need to have entered data in L1, L2, or both) STAT. CALC. 1-VAR STATS L (remember to scroll down once you get your results. The quartiles are listed below what you see on your screen) DISTR (2nd^ vars). Normalcdf. Enter (lower bound, upper bound, mean, sd) DISTR. invNorm Enter (area under curve to left of x value, mean, SD) First you need to enter data in L1 and L2. STAT. CALC. LinReg (a+bx) (L1, L2, Y1) (If you have a newer calc, put STOREREGEQ: Y1) Create L3 in which you type in your regression equation (using L1 as the x value). Then create L which is L2-L Use L4 (from directions above) and create a histogram STATPLOT. ON. Type: Histogram. XList: L4. Open “graph” If the relationship is exponential, take log of x values (or ln), then enter data and find the least squares regression line. If the relationship is a power model, take log of (or ln) x and y values and enter data to find least squares regression line. DISTR. BINOMPDF. (#trials, probability of success, number of successes) Ex. Binompdf (10, .166666667, 3) (this is for the die example). Remember that the P in PDF stands for PRECISE. We’re only interested in if there are exactly 3 successes.

Binomial probability of a count or less (≤ only… won’t work for < ) Ex. If I flip a coin 12 times, what is the probability I get a heads 4 or fewer times Geometric probability (precise) Ex. If Jimmy is a 50% free throw shooter, what is the probability that it will take him 8 shots to make his first free throw? Geometric probability (probability it takes AT MOST n number of trials to achieve success) Ex. If Jimmy is a 50% free throw shooter, what is the probability it will take him at most 3 shots to make a FT? CI for a population PROPORTION CI for a population MEAN Find the z* for a CI Find the t* for a CI One Proportion z-test for proportion One-sample t-test for mean Find P-value (for z-tests and t-tests, respectively) CI for p1-p Test for p1-p CI for 𝜇 1 − 𝜇 2 Test for 𝜇 1 − 𝜇 2 Chi-Square Goodness of Fit test Chi-Square Test for Homogeneity or for Association/Independence DISTR.BINOMCDF. (# of trials, probability of success, max # of successes) DISTR.GEOMETPDF. (Prob of success, trial #)

  • Geometpdf (.5, 8)=. DISTR.GEOMETCDF. (Prob of success, max n)
  • Geometcdf (.5, 3) =. STAT. TESTS. 1-PropZInt STAT.TESTS. TInterval invNorm(area left of critical value, 0, 1) invT(lower bound, upper bound, df) STAT.TESTS. 1-PropZTest STAT.TESTS. T-test Normalcdf(LB, UB, M, SD) , tcdf(LB, UB, df) STAT.TESTS. 2-PropZInt STAT.TESTS. 2-PropZTest (use pooled proportion) STAT.TESTS. 2-SampTInt STAT.TESTS. 2-SampTTest STAT.TESTS. X^2 – GOF TEST (not all calcs have) STAT.TESTS. X^2 TEST
    • Enter the observed counts into a matrix by doing MATRX.EDIT. Then do STAT.TEST. X^2 TEST and enter any random matrix into the EXPECTED spot. Hit enter to see your X^2 value.
    • To actually find out your expected counts, you can go back to your main screen, MATRX, choose the matrix where you entered your expected counts, and click enter. It will show you the expected counts that it has calculated for you.