To Delete Data from a Disk in Such a Way

question 57

Short Answer

To delete data from a disk in such a way that no one can ever read it, you can use special file ________ software that overwrites supposedly empty sectors with random 1s and 0s.

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Definitions:

Two-sample T-test

A statistical method used to test if there is a significant difference between the means of two groups.

Wilcoxon Rank Sum Test

A non-parametric statistical hypothesis test used to compare two independent samples to assess whether their population mean ranks differ.

Wilcoxon Rank Sum Test

A nonparametric test that compares two independent samples to ascertain whether their populations have the same distribution.

Wilcoxon Rank-sum Test

A nonparametric test that compares two independent samples to assess whether their population mean ranks differ, used when data are not normally distributed.