Which of the Following Commands Will Output All of the Lines

question 35

Multiple Choice

Which of the following commands will output all of the lines that contain either the string Fred or fred?

• A) grep -v fred data_file
• B) grep '[f]red' data_file
• C) egrep fred data_file
• D) grep '[Ff]red' data_file
• E) grep -i fred data_file

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Definitions:

Expected Income

The weighted average of all possible income outcomes, where the weights are the probabilities of each outcome occurring.

Probability

A measure of the likelihood of a particular event or outcome, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Expected Utility

A theory in economics that calculates the utility expected from a risky or uncertain choice, aiming to maximize satisfaction.

Risk-averse

A characteristic of individuals who prefer to avoid taking risks and are likely to choose options that minimize uncertainty.