A Machine Is Set to Pump Cleanser into a Process

question 231

Multiple Choice

A machine is set to pump cleanser into a process at the rate of 10 gallons per minute. Upon inspection, it is learned that the machine actually pumps cleanser at a rate described by the uniform distribution over the interval 9.5 to 12.5 gallons per minute. What is the probability that at the time the machine is checked it is pumping more than 11.0 gallons per minute?

• A) .25
• B) .667
• C) .50
• D) .7692

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Definitions:

Neisser's Research

Refers to the work of cognitive psychologist Ulric Neisser, who is known for his contributions to the study of perception, memory, and the concept of self.

Visual Search

The process of scanning the environment with the eyes to find a specific object or feature among other objects.

Array

A systematic arrangement of similar objects, typically in rows and columns, or a data structure in computer science that consists of a collection of elements identified by at least one index or key.

David Marr's Model

A theory in cognitive science that describes vision as proceeding from a 2D view of the world to a 3D one through a series of processing stages.