At a Course in Public Speaking, the Instructor Always Gives

question 60

Multiple Choice

At a course in public speaking, the instructor always gives an opening speech that lasts between fifteen 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. The probability density curve is shown below. What is the probability that the speech will last at least seventeen minutes? What is the probability that the speech will last between fifteen and sixteen minutes?

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

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Definitions:

Behaviourist

A psychological approach focusing on observable and measurable behaviors, discouraging speculation about internal mental processes.

Aggressive or Non-Aggressive

A classification that denotes whether actions, thoughts, or attitudes are intended to harm or are non-harmful in nature.

Behaviourist Analysis

An approach to psychology focusing on observable behaviors and the ways they're learned, rather than on internal mental states.

Stimulus and Response

The process by which an external stimulus produces a reaction or response in an organism.