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In a manufacturing process that laminates several ceramic layers, 0.7% of the assemblies are defective. Assume...

In a manufacturing process that laminates several ceramic layers, 0.7% of the assemblies are defective. Assume the assemblies are independent.

(a) What is the mean number of assemblies that need to be checked to obtain 7 defective assemblies?

(b) What is the standard deviation of the number of assemblies that need to be checked to obtain 7 defective assemblies?

math   Statistics-And-Probability   
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