1. If a variable x is normally distributed, with = 25 and = 5, find...

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1. If a variable x is normally distributed, with μ = 25 and σ = 5, find Pr(20 ≤ x ≤ 30).

2. If a variable x is normally distributed, with μ = 25 and σ = 5, find Pr(30 ≤ x ≤ 35).

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