The rate is a coefficient that is usually expressed in percentage terms.
A rate is a relationship between two magnitudes . It is a coefficient that expresses the relationship between a quantity and the frequency of a phenomenon . In this way, the rate allows us to express the existence of a situation that cannot be measured or calculated directly.
The unemployment rate , for example, calculates the number of unemployed people based on the economically active population (those people who are able to be part of the labor market). In a region where 1,000 people live, if the unemployment rate is 10%, it does not mean that there are 100 unemployed, since if only 500 of them are economically active, the result would reveal that the number of unemployed people is 50. .
A tax that is imposed to access certain services or to carry out an activity is also called a rate. The person who is obliged to pay taxes, therefore, is a direct beneficiary.
Interest rate
The interest rate , on the other hand, is the price of money and indicates how much must be paid or charged to take out a loan or transfer money in a certain situation. In the event that a person requests a loan of $20,000 with an interest rate of 25%, they must return $25,000 (the $20,000 loan plus $5,000 in interest).
If a subject deposits $15,000 in a fixed term that offers an interest rate of 5%, the investment will represent a profit of $750. That is, when the term ends, you will receive $15,750 (your original investment plus interest).
The interest rate reflects how much will be charged or paid when giving money or taking out a loan.
Population growth
In the field of demography and ecology , the index that represents the increase or decrease in the population of a certain region over a particular period of time is known as the population growth rate or demographic growth rate. (usually one year). It is usually expressed as a percentage of inhabitants at the beginning of each period and is calculated taking into account two variables: the number of births and income of people from abroad; the number of people who have died or who have emigrated from the territory in question.
The global fertility rate allows us to estimate the average number of boys and girls that a hypothetical group of women would give birth to throughout their fertile lives if they did not suffer any disease or accident that threatened their health or the proper development of their children. Thanks to this study and other related ones, it is possible to calculate the ideal rate of children that a woman should have to meet the replacement level of a population , which is currently 2.1. It should be noted that this is an estimate based on a series of assumptions that have little to do with reality, such as that all inhabitants lived the same number of years.
transfer rate
In the world of computing and telecommunications, we talk about bit rate or transfer rate to define the amount of bits that travel through a digital transmission system or that pass from one device to another in a given period of time, which returns the speed at which information is transferred. A concept related to this term is bandwidth , used massively when talking about Internet connections; Bitrate is nothing other than the actual bandwidth calculated at a particular time using defined Internet paths while a specific number of data is transmitted.
Given certain limitations and particularities of the connections, such as the distance between two nodes and the saturation of the networks , the transfer rate is usually lower than the theoretical bandwidth, especially when the number of users varies and the activities they carry out do not vary. they can be controlled.