For X ~ N(100, 15), P(85 < X < 115) ≈
- Acheck_circle
68%
- B
95%
- C
50%
- D
99.7%
Explanation
85 = μ−σ, 115 = μ+σ → 68%.
The Normal Distribution
AP Statistics· difficulty 4/5
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AP Statistics· difficulty 4/5
For X ~ N(100, 15), P(85 < X < 115) ≈
68%
95%
50%
99.7%
Explanation
85 = μ−σ, 115 = μ+σ → 68%.
Want 10 more like this — adaptive to your weak spots?