self selected
Statistically the results will not be scientifically valid if the sample size is too small.
Random sampling techniques.
very important because if you have less of scientific attitudes you cannot be successful of you scientific method.
find a group to represent the universe
Find a group to represent the universe
random sample or probability sample
In scientific notation 3500 is 3.5*10^3
bias.
Extinction coefficient proteins are important in spectrophotometry because they help determine the concentration of a sample by measuring how much light is absorbed by the proteins. This information is crucial for accurately quantifying the amount of protein present in a sample, which is essential for various scientific and research purposes.
Statistically the results will not be scientifically valid if the sample size is too small.
Random sampling techniques.
Many statistical statements for a population which are based on a sample are not valid if the sample is not representative.
A sample (short for sample set) can at it's core be any set of information that has been obtained using the scientific method.
A sample that goes through a testing or analysis process is often referred to as a "test sample" or "analytical sample." This sample is typically prepared to assess its properties, quality, or composition. In scientific contexts, it can also be called a "specimen" or "representative sample," depending on the specific application and methodology used.
random
To have a valid scientific sample of religious people in your town, you would need to ensure random selection of participants, have a sufficient sample size, use standardized survey questions, and gather data in a consistent and unbiased manner.
Because without representative sample, your results will not be valid.