In Shell Scripting, What Are Backticks, or Backwards Single Quote

question 3

Multiple Choice

In shell scripting, what are backticks, or backwards single quote marks, used for?

• A) Shell escapes
• B) Variable dereference
• C) Command substitution
• D) Output formatting

---

Definitions:

Type II Errors

A statistical error that occurs when a test fails to reject a false null hypothesis.

Type I Errors

Incorrectly denying a correct null hypothesis, familiarly termed as a "false positive."

Sampling Frequency

The rate at which samples are taken or recorded from a continuous signal or population for analysis.

Sample Size

The number of observations or data points collected in a sample from a population for the purpose of statistical analysis.