Riddles

next time i order penguin i'll have a glass of Blue Nun on the side.

here's a relatively easy one:

You are screened for a disease that strikes one out of every 500 people.

The screening test has a false positive rate of 5%.

If you test positive, what is the actual probability of your having the disease?
 
Quote from Nordic:

What's in water that puts out fire?

assuming it's a regular fire,
lack of oxygen and rapid cooling of existing fuel/oxidants bellow activation temperature, but mainly lack of oxygen?
 
Quote from darkhorse:

next time i order penguin i'll have a glass of Blue Nun on the side.

here's a relatively easy one:

You are screened for a disease that strikes one out of every 500 people.

The screening test has a false positive rate of 5%.

If you test positive, what is the actual probability of your having the disease?
dark,
me, me I know this one...

80% of the people on this site and one glass full of Amoeba.

Am I right, yeah ?
 
>The screening test has a false positive rate of 5%.

>If you test positive, what is the actual probability
>of your having the disease?

95%

JB
 
When a ship displacing 500T, pulls into a lock, and it takes 700,000 cubic meters of water to lift it 30ft

How many cubic meters of water will it take to lift a boat displacing 15T the same height, in the same lock?
 
The same amount.

JB

Quote from sulong:

When a ship displacing 500T, pulls into a lock, and it takes 700,000 cubic meters of water to lift it 30ft

How many cubic meters of water will it take to lift a boat displacing 15T the same height, in the same lock?
 
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