2. Numbers

# 2. Numbers - Is it the same or different • Is 26 large...

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What’s in a number? (part 2) • A single number, in isolation, almost always has exactly zero significance. • Usually the implied question is: “Is it large, or small?” (with respect to what?) • Significance requires comparison with another number. • “Is it the same, or different?”

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Unformatted text preview: Is it the same, or different? • Is 26 large? • Is 4 x 10 6 large? • Is 10.062 = 10.070? • Impossible to answer without some measure of the expected natural variation. • Be skeptical of claimed accuracy -- watch out for factors of 10....
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2. Numbers - Is it the same or different • Is 26 large...

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