Frequency It is a repetition of a fact or an event. It is also the number of times a periodic process repeats in a given time interval. Number of oscillations, vibrations or waves per unit of time in any periodic phenomenon.
Comes from Latin frequency derived from frequently, frequently (‘crowd’, ‘full’, ‘numerous’)
Frequency in Statistics
In Statistics, frequency is the number of times the value of a variable is repeated. There are two main types of frequency: relative and absolute.
Absolute frecuency
Absolute frequency is the number of times an event is repeated in an experiment or study. It is usually represented in the following way: nor .
Relative frequency
It is the result of dividing by the value of the absolute frequency (nYo) and the sample size (N). It is usually represented this way: fi. It can appear in decimal form, as a fraction or as a percentage.
Heart rate
The heart rate (FC) is the number of contractions or heartbeats for a given time (usually per minute). Sometimes it is also talked about pulsations.
The Fnormal heart rate at rest for Adults It is between 60 to 100 beats per minute. The freheart rate in children It is usually higher than that of an adult. From birth to approximately 10 years of age, the figures vary. For example, in babies under one year old, the normal heart rate is usually between 80 and 160, while in children between 7 and 9 years old it is usually between 70 and 110 beats per minute. The Ffetal heart rate It is between 110 and 160 beats per minute.
Maximum heart rate
The maximum heart rate It is the number of beats per minute that the heart can reach during high-intensity physical exercise. It depends on many factors. In a generic way, a person’s age can be subtracted from the figure 220 to obtain the maximum heart rate.
Breathing frequency
The Breathing frequency It is the number of breaths that occur in a certain time, usually per minute. Different factors influence, such as age and the type of activity carried out.
When the values are below normal, it is known as bradypnea. When they are higher it is called tachypnea.
Frequency in Physics
Frequency is a magnitude that measures the number of repetitions per unit of time of any phenomenon or event. Frequency can be measured in various units. It is usually measured in hertz (Hz) and indicates the number of times a phenomenon is repeated per second. Revolutions per minute (rpm) are also used.
See also Period