QA 233 (Basic Business Statistics)

Formula Sheet - Midterm Exam #1

Hello QA 233 students! Please print a copy of the downloadable Word document version of this formula sheet and bring a copy to your first interim exam (chapters 1 - 3 in the ASW textbook and slide sets 1 - 3). These are the ONLY FORMULAE that you will be given, so review them and let me know if you feel I have omitted any important or relavent formulae. Also make sure that you CAN PRINT a copy of the downloadable Word version of this formulae sheet. Have a good weekend!

^{Relative Frequency:}

^{Approximate Class Width:}

^{Population Mean:}

^{Sample Mean:}

^{Number of observations to Trim T%:}

^{Population Trimmed Mean:}

^{Sample Trimmed Mean:}

^{Population Geometric Mean:}

^{Sample Geometric Mean:}

^{Population Variance:}

^{Sample Variance:}

^{Interquartile Range: IQR = Q}3 ^{- Q}1

^{Sturges’Rule: k=1+3.322log}10⁽ⁿ⁾

^Range:

^Midrange:

^{Index for Calculating the pth percentile:}

^{Population Mean Absolute Deviation:}

^{Sample Mean Absolute Deviation:}

^{Population Standard Deviation:}

^{Sample Standard Deviation:}

^{Population Coefficient of Variation:}

^{Sample Coefficient of Variation:}

^z-score: