Find the Standard Deviation of the Data Summarized in the Given

question 7

Multiple Choice

Find the standard deviation of the data summarized in the given frequency distribution.
-The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency distribution below summarizes the results. Find the standard deviation.
Round your answer to one decimal place. $$\begin{array}{l}\text { Waiting time Number of }\\\begin{array} { c c } \text { (minutes) } & \text { customer } \\0 - 3 & 13 \\4 - 7 & 13 \\8 - 11 & 10 \\12 - 15 & 11 \\16 - 19 & 0 \\20 - 23 & 3\end{array}\end{array}$$

• A) 5.6 min
• B) 7.0 min
• C) 5.3 min
• D) 5.9 min

Comprehend the relationship between genetics and intelligence.

Recognize the importance of memory processes like encoding and rehearsal in learning.

Understand the development and significance of moral reasoning in children.

Appreciate the role of educational strategies and classroom settings in cognitive development.

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Definitions:

Visual Input

Information received by the eyes and processed by the brain, influencing perception and understanding.

Auditory Stimulus

A sensory input related to hearing, such as sounds or noises, that can elicit a response from an organism.

Facial Expression

The use of the facial muscles to convey emotion, information, or reactions.

Eyelids Lifted

The action of raising the upper eyelids, usually to widen the eyes, associated with increased alertness or surprise.