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sigma(std dev) | 77.5 | |
mu(mean) | 74.9 | |
z value for 839 | -0.07355 | (x-mu)/(sigma) |
P(x=69.2) | 0.470685 | Use normdist functin in excel |
P(z=-0.036) | 0.470685 | Use normsdist functin in excel |
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