A rate is a type of ratio that expresses the relationship between two quantities with different units, such as speed (miles per hour) or price per item. While all rates are ratios, not all ratios are rates, as some ratios compare quantities of the same unit (like 4 apples to 2 apples). Therefore, it’s accurate to say that a rate is always a ratio, but the reverse is not true.
No. It can be but need not be. For example, you might calculate the ratio of today's temperature in Celsius and in Fahrenheit and calculate the ratio. That is not a rate.
They are always true - if your calculations are sound.
Pulse rates are typically considered ratio measurements. This is because they have a true zero point (a pulse rate of zero indicates no heartbeat) and allow for meaningful comparisons between values, such as saying one person has a pulse rate twice as high as another. Additionally, pulse rates can be mathematically manipulated, which is characteristic of ratio data.
The selectivity ratio is a measure used to evaluate the effectiveness of a test or screening tool in distinguishing between different populations, typically in the context of medical diagnostics or research. It is calculated by comparing the true positive rate (sensitivity) to the false positive rate. A higher selectivity ratio indicates that the test is better at correctly identifying individuals with the condition while minimizing false positives. This ratio helps in assessing the reliability and accuracy of diagnostic methods.
no it is not always true
No. It can be but need not be. For example, you might calculate the ratio of today's temperature in Celsius and in Fahrenheit and calculate the ratio. That is not a rate.
real number
Statements that always or never hold true are called "tautologies."
False..Sometimes
Yes.
They are always true - if your calculations are sound.
always true
True.
True
It is always true.
No, it's not true. Terrorism is a strategy, not a goal.
sometime true