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I. Find the area under the normal curve of the following percent. Construct the normal curve.

1. From z = 0 to z = 1.57

2. From z = 0 to z = 2.81

3. From z = 1.0 to z = 3.02

II. Find the area under the normal curve bounded by the given and x. 1. = 81, x = 71.5, = 9

III. Suppose that 1,000 students took a Math examination wherein the maximum score that they can obtain is 100. Their average score is 70 with a standard of the deviation of 5.

a. Construct a normal curve. b. How many of the students obtained a score from 70 to 95?