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10 questions from this quiz
Normal CDF
−∞-\infty−∞ or large negative like -99999
26.6%
Pr(A∩B)Pr(B)\frac{\text{Pr}(A \cap B)}{\text{Pr}(B)}Pr(B)Pr(A∩B)
X<aX < aX<a
0.3624
Z=X−μσZ = \frac{X - \mu}{\sigma}Z=σX−μ
2 cm
0.0456 cm
Confusing variance σ2\sigma^2σ2 with SD σ\sigmaσ
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