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10 questions from this quiz
When dealing with a large number of trials
np≥5np \geq 5np≥5
np≥5np \geq 5np≥5 and n(1−p)≥5n(1-p) \geq 5n(1−p)≥5
To ensure Binomial is bell-shaped enough
npnpnp
np(1−p)\sqrt{np(1-p)}np(1−p)
Normal is continuous, Binomial is discrete
0.50.50.5
P(64.5<X<75.5)P(64.5 < X < 75.5)P(64.5<X<75.5)
Z=x−μσZ = \frac{x - \mu}{\sigma}Z=σx−μ
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