On a test of optimism, scores of people diagnosed with a particular disease are normally distributed with a mean of 20 and a standard deviation of 5.
How high of a score does such a person with this disease need to be among the 5% most optimistic?
Among the 20% most optimistic? How low of a score to be among the 10% least optimistic?
Use the normal curve table and be sure to include a sketch.

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The Answer of On a test of optimism, scores of people diagnosed with a particular disease are normally distributed with a mean of 20 and a standard deviation of 5.
How high of a score does such a person with this disease need to be among the 5% most optimistic?
Among the 20% most optimistic? How low of a score to be among the 10% least optimistic?
Use the normal curve table and be sure to include a sketch.

On a Test of Optimism, Scores of People Diagnosed with a Particular