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very simple question

V

Viki2010

Member
The probability of a claim is q.
The sitribution function for the size of a claim is F(x).

The probability that the amount paid exceeds L, given that a claim occurs is:

1- F(x).

Why not (1-F(x)) / q?

This was a multiple choice question and my answer was (1-F(x)) / q

but the actual answer is 1-F(x).
 
The probability of a claim is q.
The sitribution function for the size of a claim is F(x).

The probability that the amount paid exceeds L, given that a claim occurs is:

1- F(x).

Why not (1-F(x)) / q?

This was a multiple choice question and my answer was (1-F(x)) / q

but the actual answer is 1-F(x).

Wheres the 1-F(L) option?
 
F(x) is the distribution of the claim given that a claim has occurred. Since you are told that a claim has occurred, q doesn't enter into it.
 
The probability of a claim is q.
The sitribution function for the size of a claim is F(x).

The probability that the amount paid exceeds L, given that a claim occurs is:

1- F(x).

Why not (1-F(x)) / q?

This was a multiple choice question and my answer was (1-F(x)) / q

but the actual answer is 1-F(x).

What exam paper question is it Viki?
 
What exam paper question is it Viki?


Sorry, I messed up the answers:

As pointed out below the correct answer is: 1-F(L)

I chose (1- F(L))/q which is wrong


This was question 1 on April 1998.
 
Sorry, I messed up the answers:

As pointed out below the correct answer is: 1-F(L)

I chose (1- F(L))/q which is wrong


This was question 1 on April 1998.

The F(x) is the distribution of a claim. If there is no claim then you don't need a distribution for it. Hence the F(x) is the distribution of a claim given that it occurs.

You're confusing it with the case where as claim has occured but it is over the retention limit (or excess). In which case the F(x) on its own doesn't give that and so we need the conditional thing.
 
The F(x) is the distribution of a claim. If there is no claim then you don't need a distribution for it. Hence the F(x) is the distribution of a claim given that it occurs.

You're confusing it with the case where as claim has occured but it is over the retention limit (or excess). In which case the F(x) on its own doesn't give that and so we need the conditional thing.

Thank you Calum and John Lee. It makes perfect sense!
 
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