The Normal Distribution and the 68–95–99.7% Rule (VCE SSCE General Mathematics): Flashcards
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Distribution that models bell-shaped data
Distribution that models bell-shaped data
Normal distribution
% within 1 SD (68-95-99.7 rule)
% within 1 SD (68-95-99.7 rule)
68%
% within 2 SD (68-95-99.7 rule)
% within 2 SD (68-95-99.7 rule)
95%
% within 3 SD (68-95-99.7 rule)
% within 3 SD (68-95-99.7 rule)
99.7%
% in each tail beyond 1 SD
% in each tail beyond 1 SD
16%
% in each tail beyond 2 SD
% in each tail beyond 2 SD
2.5%
Z-score formula
Z-score formula
Convert z-score to actual score
Convert z-score to actual score
Positive z-score location
Positive z-score location
Above the mean
Negative z-score location
Negative z-score location
Below the mean