For X~ N(-20, 1.3), find using r code: 1. P(X<-20) 2. P(X<-18.6) 3. P(X<-22.2 OR X > -17.8)

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A: Please check step 2 for the solution.!

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A: we knoe that  ∫xndx=xn+1n+1+c

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A: Please see the below picture for detailed solution.

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