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Benford’s law states that the probability that a number in a set has a given leading digit, d, is
P(d) = log(d + 1) - log(d).

State which property you would use to rewrite the expression as a single logarithm, and rewrite the logarithm. What is the probability that the number 1 is the leading digit? Explain.

Respuesta :

Benford’s law states that the probability that a number in a set has a given leading digit, d, is
P(d) = log(d + 1) - log(d)
 
The division property of logarithm should be use to make it as a single logarithm  
P(d) = log ( (d + 1)/ d)  
So the probability that the number 1 is the leading digit is
P(1) = log ( ( 1+1)/ 1)
P(1) = log ( 2)
P(1) = 0.301

The probability that the number 1 is the leading digit is [tex]0.301[/tex].

Given information:

Benford’s law states that the probability that a number in a set has a given leading digit [tex]d[/tex], is [tex]P(d) =\log(d+1)-\log(d)[/tex]

As mentioned in question,

Probability of a number in a set is given by [tex]P(d) =\log(d+1)-\log(d)[/tex].

The division property of logarithm should be use to make it as a single logarithm [tex]P(d)=\log(\frac{d+1}{d})\;\;\;\{\log(a)-\log(b)=\log\frac{a}{b}\}[/tex].

So, the probability that the number 1 is the leading digit is,

[tex]P(1) = \log ( ( 1+1)/ 1)\\P(1) = \log ( 2)\\P(1) = 0.301\\[/tex]

Hence, The probability that the number [tex]1[/tex] is the leading digit is [tex]0.301[/tex].

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