At a Course in Public Speaking, the Instructor Always Gives

question 32

Multiple Choice

At a course in public speaking, the instructor always gives an opening speech that lasts betweenfifteen and eighteen minutes. The length of the speech can be modeled by a uniform distribution,that is, the speech is just as likely to last fifteen minutes as it is to last eighteen minutes. Theprobability density curve is shown below. What is the probability that the speech will last sixteenminutes or more? What is the probability that the speech will last between eighteen and nineteenminutes?

• A) Can't be determined with the given information
• B) 0.50; 0.25
• C) 0.50; 0.75
• D) 0.75; 0.25

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Definitions:

Situation

The set of all external and internal factors that are present at a given time and place, influencing an individual's actions and decisions.

Information-processing Approach

A model in psychology that describes cognition as the processing of information through a system that works similarly to a computer.

Computer

An electronic device capable of processing, storing, and displaying information for various tasks.

Sensory Impressions

Information gathered by the senses (sight, smell, touch, taste, and hearing) that shapes our understanding of the environment.