Find Conditional and Marginal Distributions

question 18

Multiple Choice

Find conditional and marginal distributions.
-A large national retailer of electronics conducted a survey to determine consumer
Preferences for various brands of digital cameras and the data are summarized in the table
Shown below. Of the consumers who are male, the percentage who prefer Pentax is
Female Male Total
Sony Cyber-Shot 73 59 132
Kodak - Easy Share 49 47 96
Cannon Power Shot 58 33 91
Pentax 37 41 78
Olympus 45 28 73
Other Brands 86 67 153
Total 348 275 623

• A) 44.1 % (275 / 623).
• B) 6.6% (41 / 623).
• C) 52.6% (41 / 78).
• D) 14.9% (41 / 275).
• E) 12.5% (78 / 623).

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Definitions:

Backup

The act of copying data, files, or systems to a secondary location for preservation in case of failure or loss of the original.

Reliability

The measure of the probability that a system or component functions without failure under specified conditions for a specified period of time.

Functionality

Refers to the range of operations that can be performed by a product or a system.

Components Connected

Describes parts or elements that are linked or joined together within a system or structure.