Hi,

Using TI Calculator:

a.  area to the right of z = 2.32   1 - invNorm(area to left of desired z) = 1-invNorm(2.32)

 b. area to the right of z = -1.58   1 - invNorm(-1.58)

 c. area to the left of z = 1.76      invNorm(1.76)

 d. area to the left of z = 0.94      invNorm(.94)

 e. area between z1 =-1.09 and z2= 2.27     normalcdf(smaller z, larger z) = normalcdf(-1.09, 2.27)

 f. area between z1= 1.15 and z2= 2.28     normalcdf(1.15, 2.28)

 g. area between z1=-0.45 and z2= -2.11    normalcdf(-2.11, -0.45) 

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