Statistics questions

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Mathematics

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Explanation & Answer

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


Anonymous
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