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colleen colleen
wrote...
Valued Member
Posts: 17077
11 years ago
What is the doubling time for hybrid sales, based on the increase from 2000 to 2005?
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Sunshine ☀ ☼

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wrote...
Staff Member
11 years ago
To answer this question, you must first calculate r.

Use: r = (1/t)ln(N/N0)

= 1/5 ln (205,749/9350) =  0.618 = 61.8% per year

T = 70/r = 70/61.8 = 1.13 years
- Master of Science in Biology
- Bachelor of Science
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