A company makes cricket balls and tennis balls. The weights of cricket balls, $$\(C\)$$ grams, follow a normal distribution $$\[ C \sim \mathrm{N}\left(160,1.25^{2}\right) \]$$ Three cricket balls are selected at random. Find the probability that the total weight of the five tennis balls and the two cricket balls is more than 625 grams. (4) A random sample of $$\(n\)$$ tennis balls $$\(T_{1}, T_{2}, T_{3}, \ldots, T_{n}\)$$ is taken. The random variable $$\(Y=(n-1) T_{1}-\sum_{r=2}^{n} T_{r}\)$$ Given that $$\(\mathrm{P}(Y> 40)=0.0838\)$$ correct to 4 decimal places,

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