Statistically the results will not be scientifically valid if the sample size is too small.
self selected
Random sampling techniques.
find a group to represent the universe
Find a group to represent the universe
A quality that is not characteristic of a scientific poll is bias in sample selection. Scientific polls aim for random sampling to ensure that the results are representative of the larger population. Other qualities include clearly defined questions, a sufficient sample size, and the use of statistical methods to analyze results. Bias undermines the validity and reliability of the poll's findings.
this is brief, but a census gathers data from the whole group/poulation, wheras a sample investigation on takes a small part of the group/poulation, a sample
The sample space is {m, a, t, h, e, i, c, s} which, curiously, is also the sample space for choosing a letter from my user name!
Every accident/incident is followed by investigation.
random sample or probability sample
In a scientific investigation, it is crucial that the number of objects or events being sampled be sufficiently large to ensure statistical significance and reliability of the results. A larger sample size reduces the impact of random variability and helps to provide a more accurate representation of the population being studied. Additionally, it enhances the ability to detect true effects or differences, leading to more robust conclusions. Ultimately, an appropriately sized sample increases the credibility and generalizability of the findings.
self selected
It should reduce the sample error.
bias
The sample space is {p, r, o, b, a, i, l, t, e, s}
If the sample is homogeneous, then half of its volume has half of its mass and half of its weight.
Failure to provide a DNA sample in a criminal investigation can result in legal consequences such as being charged with obstruction of justice or contempt of court. This refusal may also lead to suspicion and potentially hinder the investigation, making it harder for law enforcement to identify and apprehend the perpetrator.
Sampling gives good insight of the choosen sample