Imagine an HIV test that is 95% accurate (false positive rate of 5%) and around 2% of the tested population is infected with HIV. What is the probability that you actually have HIV when your test comes back positive?
This mother comes from a family of eight,
Supports her children in spite of their weight,
Turns around without being called,
Has held you since the time you crawled.
“Mother” Earth. The family of eight are the eight planets, all of the world’s population is quite a load, the earth is always spinning (or turning around) and unless you’re an alien, you’ve been on earth your whole life.
Money is right above my reach, I’m barely staying out of The Emergency Room (It is right below me), Room #3 is to my left, Room #5 is to my right with a 5% interest rate.
The number 4 key on a QWERTY keyboard. $ is money, ER (an abbreviation for Emergency Room) are the two letters immediately below the number 4 key, the #/3 key is to the left and the 5/% key is to the right.
You are the bus driver. At your first stop, you pick up 29 people. On your second stop, 18 of those 29 people get off, and at the same time 10 new passengers arrive. At your next stop, 3 of those 10 passengers get off, and 13 new passengers come on. On your fourth stop 4 of the remaining 10 passengers get off, 6 of those new 13 passengers get off as well, then 17 new passengers get on. What is the color of the bus driver’s eyes?
These are names given to groups of creatures or things, but they have been scrambled. What is the correct arrangement?
Colony of Birds
Horde of Spiders
Den of Wild Pigs
Clutter of Crows
Nest of Snakes
Park of Elks
Doylt of Ferrets
Gang of Machine Guns
Business of Swine
Volery of Artillery
Hover of Gnats
Drift of Frogs
Colony of Frogs
Horde of Gnats
Den of Snakes
Clutter of Spiders
Nest of Machine Guns
Park of Artillery
Doylt of Swine
Gang of Elks
Business of Ferrets
Volery of Birds
Hover of Crows
Drift of Wild Pigs
There are two tricks to this one. The first is 1 × 0. But it’s mostly there as a distraction. Yes, 1 × 0 is 0, but that doesn’t affect anything else in the equation. The second, far trickier element is that the lines ending with 1 don’t have a + sign next to them. That means they should be combined with the following line.