Stats 200 UIUC Study Guide Exam #Questions with correct
answers
margin of error percent find n - ✔✔n = (100*Z*SD)^2/ME
margin of error - ✔✔ME% = Z*SD/√n * 100
confidence interval formula - ✔✔sample average +/- Z*SE
SD of Box model - ✔✔|a-b|√(fraction of a tickets * fraction of b tickets)
z-score - ✔✔(val-avg)/SE
EVsum - ✔✔n*box average
EVavg - ✔✔average of box
EV% - ✔✔percent in box
SEsum - ✔✔√n x SD of box
SEavg - ✔✔SD of box/√n
SE% - ✔✔(SD of box/√n) x 100
answers
margin of error percent find n - ✔✔n = (100*Z*SD)^2/ME
margin of error - ✔✔ME% = Z*SD/√n * 100
confidence interval formula - ✔✔sample average +/- Z*SE
SD of Box model - ✔✔|a-b|√(fraction of a tickets * fraction of b tickets)
z-score - ✔✔(val-avg)/SE
EVsum - ✔✔n*box average
EVavg - ✔✔average of box
EV% - ✔✔percent in box
SEsum - ✔✔√n x SD of box
SEavg - ✔✔SD of box/√n
SE% - ✔✔(SD of box/√n) x 100