The probability of choosing one thing with a particular characteristic equals the percentage of things with that characteristic. (3) To convert a decimal to a fraction: (a) type the decimal (b) MATH Frac ENTER 1Ģ Frank s Ten Commandments of Statistics 1. Hypothesis Test: Scroll to one of the following: 1:Z-Test 2:T-Test 3:2-SampZTest 4:2-SampTTest 5:1-PropZTest 6:2-PropZTest C:X 2 -Test D:2-SampFTest E:LinRegTTest F:ANOVA( Confidence Interval: Scroll to one of the following: 7:ZInterval 8:TInterval 9:2-SampZInt 0:2-SampTInt A:1-PropZInt B:2-PropZIn Other points: (1) To clear the screen, hit 2 nd, MODE, CLEAR (2) To enter a negative number, use the negative sign at the bottom right, not the negative sign above the plus sign.
For binomial probability, scroll to either 0:binompdf(, or A:binomcdf(, then enter n,p,x. ZOOM 9 The calculator will display your chart Find normal or binomial probabilities Confidence Intervals or Hypothesis Tests 2 nd VARS STAT TESTS For normal probability, scroll to either 2: normalcdf(, then enter low value, high value, mean, standard deviation or 3:invNorm(, then enter area to left, mean, standard deviation. Make sure the correct lists are selected 4.
Select the type of chart you want, ENTER 3. Create a histogram, boxplot, scatterplot, etc.
ENTER The calculator will tell you, s, 5-number summary (min, Q1, med, Q3, max), etc. Then just type the numbers into the appropriate list (L1, L2, etc.) TI 83/84 Calculator The Basics of Statistical Functions Get Descriptive Statistics STAT CALC 1: 1-Var Stats ENTER The screen shows: 1-Var Stats You type: 2nd L1 or 2nd L2, etc.
1 What you want to do How to start What to do next Put Data in Lists STAT EDIT 1: EDIT ENTER Clear numbers already in a list: Arrow up to L1, then hit CLEAR, ENTER.
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