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What is a constant rate?
a non-stop rate * * * * * No it is not. A non-stop rate can be faster and slower and faster and faster still etc. That is NOT a constant rate, A constant rate means the same amount for any unit of time in the whole time interval. The rate must not change at all from start to finish.
What are non examples of unit ratios?
Any ratio of the form p : q where p and q are integers whose absolute values are greater than 1.
The ratio of the circumference and diameter any circle?
The ratio of the circumference of a circle to its diameter is Pi. (3.14159)
Ratio of the circumference and diameter of any circle?
The ratio of the circumference of a circle to its diameter is Pi. (3.14159)
The Sortino Ratio?
I've written before about the Sharpe Ratio, a measure of risk-adjusted returns for an asset or portfolio. The Sharpe ratio functions by dividing the difference between the returns of that asset or portfolio and the risk-free rate of return by the standard deviation of the returns from their mean. So it gives you an idea of the level of risk assumed to earn each marginal unit of return. The problem with using the Sharpe Ratio is that it assumes that all deviations from the mean are risky, and therefore bad. But often those deviations are upward movements. Why should an investment strategy by graded so sharply by the Sharpe Ratio for good performance? In the real world, investors don't usually mind upside deviations from the mean. Why would they? These were the questions on the mind of Frank Sortino when he developed what has been dubbed the Sortino Ratio. The ratio that bears his name is a modification of the Sharpe Ratio that only takes into account negative deviations and counts them as risk. To me, it always made a lot more sense not to include upside volatility from the equation because I rather like to see some upside volatility in my portfolios. With the Sortino Ratio only downside volatility is used as the denominator in the equation. So the way you calculate it is to divide the difference between the expected rate of return and the risk-free rate by the standard deviation of negative asset returns. (It can be a bit tricky the first time you try to do it. The positive deviations are set to values of zero during the standard deviation calculation in order to calculate downside deviation.) By using the Sortino Ratio instead of the Sharpe Ratio you’re not penalizing the investment manager or strategy for any upside volatility in the portfolio. And doesn’t that make a whole lot more sense?
Why does pi not have units?
Pi is a natural constant of the ratio circumference divided by diameter. That ratio cannot have any unit.
What is the unit of index of refraction?
The index of refraction is a unitless ratio. It has no units, it is a pure number.
How does a unitary rate differ from any other ratio?
A unitary rate must specifically have a denominator of one. Unitary rates are used in mathematical operations and conversions. Any other ratio can have any number as the denominator.
Why is the speed limit on a highway a unit rate?
Any type of measurement is a unit rate. The speed limit is a measurement of time and distance.
How are ratio and proportion related?
A proportion is the same as a ratio, but it must be focused on one unit per something. Ratios can be any comparison
Why is any whole number rational?
-- Any number that can be written as the ratio of two whole numbers is a rational number.-- Any whole number can be written as the ratio of that number to ' 1 ', so it's rational.
Why compounds are represented in a formula unit?
Compounds are represented by a formula unit to show the simplest ratio of atoms or ions. This unit repeats throughout any amount of the compound.
What can be written as the ratio of two integers?
Any and every rational number.
What are any numbers that can be written as a ratio of two integers?
They are rational numbers.
What is any number that can be written as a ratio of two integers?
It is a rational number.
How do you round rate or unit rate to the nearest hundredth?
The same way you round any number to the nearest hundredth.
Why is the perimeter always written in units?
Any measure must always be written in units unless it is a pure ratio.
