sample size is the specific size of a thing like the how long or wide. while sample unit is the whole thing not referring to specific number size.
unit sample is defined by $(n)= 1 at n=0; = 0 otherwise; Used for to decompose the arbitrary signal x(n) into summation of weighted and shifted unit samples as follows x(n)=( summation of limit k=- infinite to + infinite) x(k)$(n-k)
A population survey, better known as a census, entails the collection of each unit in the population. In sample survey information is collected from a subset of the population. The subset, or sample, needs to be selected carefully so that it is representative of the whole population and, if that requirement is met, statistics based on the sample are good estimators for the corresponding population parameters.
Sometimes the information about each and every unit of the population is required. This is possible only through the complete enumeration because the sample will not serve the purpose.
sample size is the specific size of a thing like the how long or wide. while sample unit is the whole thing not referring to specific number size.
Its density.
Unit.
The density of a mineral sample is a measure of its mass per unit volume. It can be calculated by dividing the mass of the sample by its volume. The density of a mineral sample is a characteristic property that can help in identifying the mineral.
A universal indicator tests the pH level of a substance. A sample of rainwater with universal indicator can reveal whether the rainwater is acidic, basic, or neutral. This information can provide insight into the presence of pollutants or natural substances in the rainwater.
you use centimeters to measure blood.
The key feature is that each sample of the given size has the same probability of being selected as the sample. Equivalently, each unit in the population has the same probability of being included in the sample.
unit sample is defined by $(n)= 1 at n=0; = 0 otherwise; Used for to decompose the arbitrary signal x(n) into summation of weighted and shifted unit samples as follows x(n)=( summation of limit k=- infinite to + infinite) x(k)$(n-k)
The population consists of every possible unit where a sample is a subset of the population. Note that population and sample need not refer to persons. For example, if studying biodiversity, the population could consist of plots of land.
In optical density measurements, D typically stands for "Absorbance" and is commonly used as a unit of measurement to quantify the amount of light absorbed by a sample. The higher the D value, the more light is absorbed by the sample.
In a probability sample, each unit has the same probability of being included in the sample. Equivalently, given a sample size, each sample of that size from the population has the same probability of being selected. This is not true for non-probability sampling.