Which of the Following Statements About the Mean Is Not

question 152

Multiple Choice

Which of the following statements about the mean is not always correct?

• A)The sum of the deviations from the mean is zero.
• B)Half of the observations are on either side of the mean.
• C)The mean is a measure of the central location.
• D)The value of the mean times the number of observations equals the sum of all observations.

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Definitions:

Guanine

One of the four main nucleobases found in the nucleic acids DNA and RNA, pairing with cytosine in DNA and contributing to the genetic code.

Adenine

One of the four nucleobase molecules used to form the building blocks of DNA and RNA, pairing with thymine in DNA and uracil in RNA.

Polygenic Traits

Traits that are influenced by more than one gene, resulting in a wide range of phenotypes, such as height and skin color.

Genes

The units of heredity made up of DNA that carry information responsible for the expression of traits from parents to offspring.