00:01
In this exercise, we are given a probability distribution for the value of the damage incurred in car accidents in a given year.
00:09
There is an insurance company that offers a $500 deductible, and if the insurance company wishes to have a profit of $100, we are asked to find what premium the insurance company should charge.
00:25
So what should the insurance company charge its customers if it wishes to have an expected profit of $100? so we have the distribution for the dollar amounts for the damage for car accidents, but if the insurance company has a $500 deductible, that means that they are paying out $500 less for any positive claims, so any claims greater than zero.
00:53
So we could define a second random variable.
00:59
We can call the payout, and it's equal to the damage amount.
01:16
Minus the deductible, and that's for damage greater than zero.
01:38
Otherwise it's zero.
01:56
So we can show the probability distribution for this variable.
02:08
We have zero.
02:15
Now we'll have 500.
02:17
So i'm just taking $1 ,000 and subtracting 500, so we get 500.
02:24
Now take $5 ,000, subtract 500.
02:27
That's a payout of 4 ,500.
02:30
And 10 ,000 minus 500.
02:44
So this is the probability distribution for the amount that the insurance company will have to pay its customer.
02:52
It's the same as the probability distribution for x, except that these three values have $500 deducted from them...