QCEVault

Discrete random variables — Question 366

Original QCE Vault practice · 4 marks

Q366 · Practice questionTechnology-activeComplex familiar4 marks

QUESTION 366 (4 marks)

A component passes a specialised stress test with probability 0.150.15. Tests of different components are independent. Determine the minimum number of components that must be tested for the probability of at least one pass to be at least 0.900.90.
a)
Show your reasoning.
[4 marks]
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