HELP!!!!! This is normal distribution and I am very confused on how to even figure it out

1. P(0 < z < 1.60)

2. P(0 < z < 0.67)

3. P(-1.23 < z < 0)

4. P(-1.57 < z < 0)

5. P(z > 1.16)

6. P(z < -1.21)

7. P(1.12 < z < 1.43)

8. P(-0.96 < z < -0.36)

9. P(-0.05 < z < 1.10)

10. P(z < 1.31)

11. P(z > -0.15)

An IQ test has a mean of 100 and a standard deviation of 15. Assume a normal distribution. Find the following probabilities:

12. What is the probability that someone scores more than 95 points?

13. What is the probability that someone scores more than 125 points?

14. What is the probability that someone scores between 110 and 120?

The scores on a college entrance examination are normally distributed with a mean of 550 and a standard deviation of 100. For a sample of 30 students, what is the probability that the sample

15. Has a mean of at least 600?

16. Has a mean between 500 and 575?

17. Has a mean less than 575?

18. To be accepted into a special class, a student must score in the top 7 % on an aptitude test. If the mean on the test is 150 and the standard deviation is 15, what is the lowest possible score a student can make to be accepted?