Which of the Following Statements Is Incorrect

question 18

Multiple Choice

Which of the following statements is incorrect?

• A) The expected value of a discrete probability distribution is the long-run average value assuming the experiment will be repeated many times.
• B) The standard deviation of a discrete probability distribution measures the average deviation of the random variable from the mean.
• C) The distribution is considered uniform if all the probabilities are equal.
• D) The mean of the probability distribution is equal to the square root of the variance.

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Definitions:

Ingestion

The method by which food, liquids, or other substances are introduced into the body through swallowing or absorption.

Active Transport

A cellular process that requires energy to move substances across cell membranes against a concentration gradient.

Concentration Gradient

The gradual difference in the concentration of solutes in a solution between two regions. In biology, it often refers to differences across a membrane.

Carrier

A molecule or protein that transports substances across a cell membrane, or a person or animal that transmits a disease-causing agent without showing symptoms.