What is the mathematical concept for describing how close a prediction is to an actual value?
So, right now I'm working with models and stuff. So, I wanted to see how close the values of my models are to the actual values of the data set, but I don't know the exact mathematical wording of... more
Related Rates: Trough
A trough is 9 feet long, and its cross section is in the shape of an isosceles right triangle with hypotenuse 2 feet, as shown above. Water begins flowing into the empty trough at the rate of 2... more
Why does Kr have larger radius than Ar when Kr has a larger effective nuclear charge?
Looking at the atomic radius trend of the periodic table, Kr has a larger radius than Ar. But my textbook claims that Kr has a larger effective nuclear charge than Ar for n=3. Wouldn't that mean Kr... more
The volume of a pyramid varies jointly as the height and the area of the base.
If a pyramid has the measurements cubic yards, yards and yards, and yards, what is the volume of a pyramid that has a length of yards, width of yards, and height of yards. Round your answer... more
It is a game you are playing with toss a coin and roll a die. In each game, you pay $2. If the coin shows a tail and die shows at least a five, you win $10..
If you played this game 50 times, how much would you expect to win /loose? (Please write amount)and what is the expected value ?