Using the Data Table Shown, What Is the Standard Deviation

question 14

Multiple Choice

Using the data table shown, what is the standard deviation of the number of galls found on a set of 30 leaves collected from a plant?
?
Number of galls found on 30 leaves collected from a plant.

$\begin{array}{cc}\begin{array}{l}\text { Number } \\\text { of galls }\end{array} & \text { Frequency } \\\hline 0 & 4 \\1 & 8 \\2 & 9 \\3 & 4 \\4 & 3 \\5 & 2 \\\hline\end{array}$ ?

• A) 1.0
• B) 1.4
• C) 2.0
• D) 5.5

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Definitions:

Freudian Psychology

A comprehensive theory of human nature that emphasizes the importance of the unconscious mind, developed by Sigmund Freud.

Positive Psychology

A field of psychology focused on the study of positive aspects of human life, such as happiness, well-being, and thriving.

William James

An American philosopher and psychologist, often referred to as the father of American psychology.

Wilhelm Wundt

Often regarded as the father of psychology, he established the first psychology laboratory at the University of Leipzig, Germany.