For scores that are normally distributed with a mean score of 120 and a standard
deviation of 20.

1) What % of the data is between 80 and 160?

2) What % of the data is below 100?

3) 68% of the scores are between what scores?

4) Find the z-score for a score of 155.

5) Find the z-score for a score of 90.

6) Find a score that is 3 standard deviations above the mean.

7) Find a score that is 2.5 standard deviations below the mean