Which Statement Best Describes the Relationship Between Superclass and Subclass

question 16

Multiple Choice

Which statement best describes the relationship between superclass and subclass types?

• A) A subclass reference cannot be assigned to a superclass variable and a superclass reference cannot be assigned to a subclass variable.
• B) A subclass reference can be assigned to a superclass variable and a superclass reference can be assigned to a subclass variable.
• C) A superclass reference can be assigned to a subclass variable, but a subclass reference cannot be assigned to a superclass variable.
• D) A subclass reference can be assigned to a superclass variable, but a superclass reference cannot be assigned to a subclass variable.

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Definitions:

Sample Size

The number of observations or data points collected in a statistical study, which is crucial for determining the study's accuracy and reliability.

Null Hypothesis

A hypothesis that assumes no statistical significance exists in a set of observations and that any observed difference is due to sampling or experimental error.

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is actually true, often denoted as alpha and used as a threshold for determining statistical significance.

Null Hypotheses

A statistical hypothesis that assumes no significant difference or effect exists within a set of given observations.