Question: 4a) Without using a normal curve table, about what proportion of scores on a normal curve are between the mean and 1 SDs above the

4a) Without using a normal curve table, about what proportion of scores on a normal curve are between the mean and 1 SDs above the mean?

Round to the NEAREST two decimal points.

4b) Without using a normal curve table, about what proportion of scores on a normal curve are between the mean and 2 SD above the mean?

Round to the NEAREST twodecimal points.

4c) Without using a normal curve table, about what proportion of scores on a normal curve are 2 SDs above the mean?

5a) The test of eye fatigue has a mean of 15 and a standard deviation of 5. Using a normal curve table, what proportion of students have score above 16?

5b) The test of eye fatigue has a mean of 15 and a standard deviation of 5. Using a normal curve table, what proportion of students have score above 18?

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