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4 Cards in this Set
- Front
- Back
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How many shades of gray can a person distinguish?
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7 or 8
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How small can symbols be made and still be recognizable?
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About 1/200 of an inch from 3 feet away
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You should use a gray scale for qualitative data. T or F
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False
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What is a discrete surface?
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A discrete surface is composed of areas of 0 degree slope seperated by boundaries having a 90 degree slope.
Simple choroplethic maps use this design |
