Question #313058

P ( -2.81 < z < 0 ) 


1
Expert's answer
2022-03-18T05:28:40-0400

P(2.81<z<0)=Φ(0)Φ(2.81)=0.50.00248=0.49752P\left( -2.81<z<0 \right) =\varPhi \left( 0 \right) -\varPhi \left( -2.81 \right) =0.5-0.00248=0.49752


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