Assume the Following Variable Has Been Declared and Given a Value

question 68

Multiple Choice

Assume the following variable has been declared and given a value as shown:
Int[][] data = {
{9, 17, -4, 21 },
{15, 24, 0, 9},
{6, 2, -56, 8},
};
Which is the value of data.length?

• A)4
• B)3
• C)12
• D)6

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Definitions:

Wilcoxon Rank Sum Test

A nonparametric statistical test used to compare two independent samples to determine if they come from the same distribution.

Independent Samples

Two or more sets of observations that are collected independently of each other, often compared in hypothesis testing to assess whether there are differences between groups.

Ordinal Data

A type of data that represents categories with a meaningful order, but differences between categories are not necessarily consistent.

Nonparametric Test

Statistical tests that do not assume a particular distribution of the data, useful for ordinal or nominal data.