Z is the standard normal variable find P(-3.50<z<1.000)
We know that
Z is the standard normal variable
Z ~ Norm ( 0,1)
By using Z table (probability table )
P ( -3.50 < z < 1 ) = P (z<1) - P (z < -3.50)
= P (z<1) - [ 1 - P (z<3.50) ]
= 0.8413 - ( 1 - 0.9998 )
= 0.8411
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