Does N(0,1) mean a normal distrubution with mean=0 and SD=1??

Is phi the normal curve or the integral of the normal curve?

The normal curve is symmetric around its mean.

If phi(0) = 1.0 then it's the normal curve and phi(z) = phi(-z)

If phi(0) = 0.5 then it's the integral of the normal curve and phi(-z) = 1 - phi(z)

Is phi the normal curve or the integral of the normal curve?

The normal curve is symmetric around its mean.

If phi(0) = 1.0 then it's the normal curve and phi(z) = phi(-z)

If phi(0) = 0.5 then it's the integral of the normal curve and phi(-z) = 1 - phi(z)