Page 98 - Statistics for Dummies

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Part II: Number-Crunching Basics
68%
68%
μ
μ – 2σ
μ – 1σ
μ – 3σ
95% μ + 1σ μ + 2σ μ + 3σ
95%
μ μ + 1σ μ + 2σ μ + 3σ
μ – 1σ
μ – 2σ
μ – 3σ

Figure 5-2:
The
Empirical
99.7%
Rule (68%, 99.7%
95%, and
μ
99.7%). μ – 3σ μ – 2σ μ – 1σ μ + 1σ μ + 2σ μ + 3σ

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