Answer:
A) The greater the variance within the population, the larger the sample should be.
Explanation:
The variance of a sample mean is inversely proportional to the sample size, that is, the larger the sample size the smaller the variability of the sample. When sample size increases, the range decreases and hence the variance decreases resulting in a more accurate research result with minimal experimental error.
Hence the researcher should employ a large sample size to reduce the variation in the population.
Answer: is a professional, who is equipped with the knowledge of chemical engineering .
Explanation:
Chemical pollution is correct
Some of the factor of both the girl are same like nature and lookwise but the activities and behavior are different as their upbringing is different.
<h3>How twin and adoption studies help to understand the effects and i
nteractions of nature and nurture?</h3>
Researchers can disentangle the influences of inheritance and environment by studying identical twins against fraternal twins and biological versus adoptive relatives, and believe that some things are in heredity and some can be changed.
Thus, nature and lookwise but the activities and behavior are different
For further information interactions of nature and nurture click here:
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