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What is the 'sample' in and experiment?
A group selected from a population for observation in a study. That definition comes directly from the glossary in my research in education textbook. In other words, I think you want to define the people in the study.
What is small sample size?
One is a small sample size, but that's just my answer, you might want to ask more people.
What is the Formula for sample deviation?
I believe you want the equation to calculate the standard deviation of a sample. The equation is: s = square root[ sum from i =1 to n of (xi- xbar)/(n-1)] where xbar is the average of values of the sample and n = size of sample.
Difference between population and sample?
the difference between population and sample is that population is multiplying the # then dovidng it by 20
Why is it so important to have a representative sample?
If the sample is not representative of the population, then the characteristics of the sample are not the characteristics of the population. Example: If I want to estimate the percentage of the population that are men, and my sample is the school's football team, my estimate would be that 100% of the population is comprised of men. What went wrong with my survey ? Simple. The football team is not a representative sample of the population, at least not as regards gender.
