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Thread: Soa 133 integral

  1. #1
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    Exclamation Soa 133 integral

    I am totally confused to the solution SOA has to this. To solve they use the integral of f(t) = 1 - exp((1 - (1.1^x))/1000). Their solution to the integral is
    -exp((1 - (1.1^x))/1000). I come up with something that should be much more complicated: x - (exp((1 - (1.1^x))/1000))/(-(1.1^x)/1000ln(1.1)). Can someone help me? Maybe I'm completely missing something..

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    Quote Originally Posted by mmmmgodiva View Post
    I am totally confused to the solution SOA has to this. To solve they use the integral of f(t) = 1 - exp((1 - (1.1^x))/1000). Their solution to the integral is
    -exp((1 - (1.1^x))/1000). I come up with something that should be much more complicated: x - (exp((1 - (1.1^x))/1000))/(-(1.1^x)/1000ln(1.1)). Can someone help me? Maybe I'm completely missing something..
    Yes, missing something. You don't have to integrate because they are giving you the distribution rather than the density. Hope this helps!

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    D'oh! you're so right! My brain is fading

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