Why Is the File Data

question 48

Multiple Choice

Why is the file data.txt empty after executing sort data.txt > data.txt?

• A) Because, if data.txt is empty now, it must have been empty before.
• B) Because sort cannot sort text files, only binary files.
• C) Because sort detects that both files are the same.
• D) Because the file gets truncated before sort is executed.

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Definitions:

Homogeneity

The quality or state of being uniform in composition or character; in statistics, it refers to the similarity of elements or observations within groups.

Tests of Homogeneity

Statistical tests used to determine if different populations have the same variance or other characteristics.

Binomial Populations

Populations that follow a binomial distribution, characterized by fixed number of trials, two possible outcomes, constant probability of success, and independence of trials.

Chi-square Test of Homogeneity

A nonparametric statistical test used to determine if there are significant differences between the distributions of categorical variables across different populations.