Count up the number of obseravtions made on the experimental units. That is the sample size.
If the population is of size N, then you allocate the numbers 1 to N to them: one per element of the population. Then generate random numbers in the range 1 - N. The element whose number is thrown up by the generator is in the sample. In the unlikely event that a number is repeated, you ignore the repeat and continue drawing the sample until you have the required correct number in the sample.
Business can randomly sample a group of people in the populations. They can also call for volunteers such as setting up a focus group.
A questionnaire has little to do with sampling technique. Sampling technique is to do with who gets the questionnaire and that can be any sampling technique: the questionnaire can be sent to everyone (census), to a random sample, stratified random samples, to random samples in clusters, by quota or convenience. Or a pile of questionnaires can be left for respondents to pick up - self-selection.
One
easy to contact.
Opportunity sampling is a type of non-probability sampling technique where researchers select participants who are readily available and willing to participate in the study. This method is convenient but can introduce bias because the sample may not be representative of the entire population.
Count up the number of obseravtions made on the experimental units. That is the sample size.
The mouthwash? Sure, you'd pick it up in a convenience store.
Yes, stone is a sample of matter. Matter is anything that has mass and takes up space, and stone fits this definition. It is made up of atoms and molecules that give it its physical properties.
The sample sentence of misspelling is: "I made a mistake and ended up misspelling her name in the email."
sugar granules is the sample matter
It was mostly made up of Greek people...
a community is made up of the specific population
7 people had made it up, who had been confederate soilders.
Roman society was divided into the patricians (the aristocracy), the equites (equestrians) who were bankers, money lenders, merchants and investors in shipping and mining, and the plebeians (the commoners). there were also slaves and freedmen
Convenience, and it usually takes only 2 people to carry.