Consider a Rational Class Designed to Represent Rational Numbers as a Pair

question 2

Multiple Choice

Consider a Rational class designed to represent rational numbers as a pair of ints, along with methods reduce (to reduce the rational to simplest form) , gcd (to find the greatest common divisor of two ints) , as well as methods for addition, subtraction, multiplication, and division. Why should the reduce and gcd methods be declared to be private?

• A) because they will never be used
• B) because they will only be called from methods inside Rational
• C) because they will only be called from the constructor of Rational
• D) because they do not use any of the Rational instance data
• E) This is incorrect; they should be declared as public

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Definitions:

Discrete Random Variables

Variables in statistical analysis that can take on a countable number of distinct values, often representing occurrences.

Continuous Random Variables

Variables that can take on an infinite number of values within a given range.

Probability Density

A function that describes the relative likelihood for a random variable to take on a given value.

Probability Density Function

A mathematical expression that defines the probability of a continuous random variable assuming a specific value.