Question 1089263
Probability (P) ( 70 < X < 110 ) = P ( X < 110 ) - P ( X < 70 )
:
z(110) = (110 - 100) / 10 = 1
P ( X < 110 ) = 0.8413
:
z(70) = (70 - 100) / 10 = -3
P ( X < 70 ) = 0.0013
:
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P ( 70 < X < 110 ) = 0.8413 - 0.0013 = 0.84 = 84%
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