I have questions regarding the quiz below.

What proportion of z scores are equal to or greater than a z score of +1.2 on a normal curve? What proportion of z scores are equal to or greater than a z score of -0.75 on a normal curve? What proportion of scores are equal to or less than a z score of +0.66 on a normal curve? What proportion of scores are equal to or less than a z score of -1.65 on a normal curve?

.