Decide Whether the Given Functions Are Inverses $$\begin{array} { l } \mathrm { f } = \{ ( 1,8 ) , ( 8 , - 3 ) , ( - 3 , - 9 ) \} \\g = \{ ( 8,1 ) , ( - 3,8 ) , ( - 9,1 ) \}\end{array}$$

question 385

Multiple Choice

Decide whether the given functions are inverses.
- $$\begin{array} { l } \mathrm { f } = \{ ( 1,8 ) , ( 8 , - 3 ) , ( - 3 , - 9 ) \} \\g = \{ ( 8,1 ) , ( - 3,8 ) , ( - 9,1 ) \}\end{array}$$

• A) Yes
• B) No

---

Definitions:

Test Statistic

A test statistic is a value calculated from sample data during hypothesis testing, used to decide whether to reject the null hypothesis.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis; it denotes the threshold of significance.

Significance Level

The probability threshold below which a null hypothesis is rejected in hypothesis testing, often denoted by alpha (α).

Obtained Value

The result or outcome achieved from a calculation or experiment.