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10 cards from this deck
x=xˉ+z×sx = \bar{x} + z \times sx=xˉ+z×s
Actual score
Mean of the data set
z-score (number of standard deviations from mean)
Standard deviation
Opposite/reverse of calculating z-scores
Above/greater than
Below/less than
x=30+2×3.5=30+7=37x = 30 + 2 \times 3.5 = 30 + 7 = 37x=30+2×3.5=30+7=37
2.5 standard deviations above the mean
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