Solve the following problem. Illustrate the Standard Normal Curve. State your conclusion in not less than three (3) sentences in every item. Note: Two diagrams shall be shown for each problem requirements.

The first diagram shows the Normal Curve for X, where the specific X values are indicated and the required area is shaded.

The second diagram shows the corresponding Standard Normal Curve that is, the normal Curve of Z, with the equivalent 2 score's Indicated and the required area are also shaded.

PROBLEM The hourly wage of 500 skilled workers is found to approximate a Normal Distribution. The average hourly wage, is computed to be P 100 with a standard deviation, of 10. A. Find the percentage of workers whose hourly wage are : 30%

1. From P100-P110

2. From P110-P130

3. From P80-P90