The answer is; to reduce statistical error and ensure a real representation the entire population.
The size of the sample size determines the precision or confidence level of the applied statistics. A proper sample size is able to capture the variability and uncertainties of the larger population and therefore estimate the larger population with good confidence levels.
I don’t know 22 but I think 21 is B
Answer:
molecule that contains at least one unpaired electron
Well there are many for example a hybrid is a cross between two differet types or that a genetic hybrid carries two different alleles of the same gene or that <span>a numerical hybrid results from the fusion of gametes having different haploid numbers of chromosomes
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