U.S. Spam %: P=13+45*ln*x (2003) - Right or Wrong?

  • Context: High School 
  • Thread starter Thread starter poohbear1986
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Discussion Overview

The discussion revolves around the mathematical model P=13+45*ln*x, which is proposed to represent the percentage of inbound e-mail in the U.S. considered spam, with x indicating the number of years after 2000. Participants are evaluating the model's implications and calculations for the year 2003.

Discussion Character

  • Mathematical reasoning, Debate/contested

Main Points Raised

  • One participant calculates P for 2003 and arrives at values of 12.18 and 5.045, seeking confirmation of correctness.
  • Another participant questions the interpretation of the formula and suggests that the natural logarithm should be applied correctly, leading to a different result of P = 62.5.
  • A participant comments on the implications of the model, suggesting it indicates that all email will be spam by a certain point, reflecting a humorous take on the model's predictions.
  • Another participant echoes this sentiment, relating it to their personal experience with spam emails.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the correctness of the calculations or the implications of the model. Multiple interpretations and calculations are presented without resolution.

Contextual Notes

There is ambiguity regarding the application of the natural logarithm in the formula, and the calculations presented by participants depend on their interpretations of the model.

poohbear1986
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P=13+45*ln*x represents the percentage of inbound e-mail in the U.S. that is considered spam, where x is the number of years after 2000. say you use 2003, i keep figurin out this out and i get 12.18 and 5.045, i like to have someone tell me if I am right or wrong
 
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poohbear1986 said:
P=13+45*ln*x represents the percentage of inbound e-mail in the U.S. that is considered spam, where x is the number of years after 2000. say you use 2003, i keep figurin out this out and i get 12.18 and 5.045, i like to have someone tell me if I am right or wrong

Do you mean [tex]\[<br /> P = 13 + 45\ln (x)<br /> \][/tex] ?

The natural log of 3 is about 1.0986, or close to 1.10,
so in your example, P = 62.5
 
Last edited:
symbolipoint said:
Do you mean [tex]\[<br /> P = 13 + 45\ln (x)<br /> \][/tex] ?

What a model... it suggests that all email will be spam as of November of last year.
 
CRGreathouse said:
What a model... it suggests that all email will be spam as of November of last year.

Pretty much matches my inbox :smile:
 

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