Suppose $f : \mathbf { R } \rightarrow \mathbf { R }$

question 114

Short Answer

Suppose $f : \mathbf { R } \rightarrow \mathbf { R }$ where $f ( x ) = \lfloor x / 2 \rfloor$
(a) Draw the graph of $f$ .
(b) Is $f$ 1-1 ?
(c) Is $f$ onto $\text { R }$ ?

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Definitions:

Interval Data

A type of data which is measured along a scale, in which each point is placed at a specific distance from one another, and has no true zero point.

Normality Requirement

The assumption that the data or residuals in certain statistical models follow a normal distribution.

Parametric Test

A type of statistical test that assumes the underlying data has a specific distribution, often based on parameters like mean and standard deviation.

Wilcoxon Signed Rank Test

The Wilcoxon Signed Rank Test is a non-parametric statistical test for comparing two matched or paired samples to assess whether their population mean ranks differ.