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An important factor in solid missile fuel is the particle size distribution. Significant prob- lems occur if the particle sizes are too large. From production data in the past, it has been determined that the particle size (in micrometers) distribution is characterized by 0, elsewhere. A Find the expected particle size. 8 Find E (x2) CFind the variance of the particle size. D Find the standard deviation of the particle size.

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-3+13 (C) ar(X)-E(X2)-E(X)--3-1.52-0.75 (D)S.D(x)- 0.75 08660

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