I am a seven letter word, you read me daily. Letters 567 increase every year. The third and fourth letters are the same and my 325 letters cover about 70% of the world. What am I?
message. Letters 567 are your age, which goes up every year. Letters 3 and 4 (both s) are in fact the same, and letters 325 spell sea, and estimates say that the earth is covered by about 70% water.
The half bucket of dimes. It might be tempting to say they’d be worth the same, since a nickel is worth half as much as a dime. This would be accurate if they were the same size, but the dime is smaller. Thus more dimes would fit in the same space, resulting in more value for you, you lucky dog.
I’m a sifter of a memorable shape, You can eat a variety of me, but I can be toxic, I can cause severe pain if you’re not careful, And the action I describe could hurt as well.
Kidneys filter your blood and are shaped like kidney beans, which you can eat. Red kidney beans contains high amounts of phytohemagglutinin (quite the word, eh?) and can be toxic if not soaked and boiled. Kidney stones can be extremely painful and if a kid knees you in the stones, that would also be unpleasant.
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?