Does anyone know which formula will be used in Exam p?Is 1/p or (1p)/p?
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A question about mean of Geometric distribution
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Which formula?
These are not two different formulas, but two different definitions of the geometric distribution: one counts the number of times you have to try to succeed the first time, the other one counts the number of times you fail before you succeed. Take the difference of these two values and you will get one  exactly the difference between those two random variables, accounting for the success on the last trial.
This really should be covered in the book you are reading  what is your textbook?
Yours,
Krzys' Ostaszewski
Originally posted by wy3310Does anyone know which formula will be used in Exam p?Is 1/p or (1p)/p?Want to know how to pass actuarial exams? Go to: smartURL.it/pass

Originally posted by krzysioThese are not two different formulas, but two different definitions of the geometric distribution: one counts the number of times you have to try to succeed the first time, the other one counts the number of times you fail before you succeed. Take the difference of these two values and you will get one  exactly the difference between those two random variables, accounting for the success on the last trial.
This really should be covered in the book you are reading  what is your textbook?
Yours,
Krzys' Ostaszewski
sincerely,
dhreminsky
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Geometric distribution
Originally posted by brokenmornWhat if the actuarial test just gives us p, what formula are we to use?
sincerely,
dhreminsky
Yours,
Krzys'Want to know how to pass actuarial exams? Go to: smartURL.it/pass
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