A Class That Implements an Interface but Only Gives Definitions

question 10

Multiple Choice

A class that implements an interface but only gives definitions for some of the method headings given in the interface is called a/an:

• A)concrete class
• B)abstract class
• C)discrete class
• D)friendly class

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Definitions:

Portfolio

A collection of financial investments like stocks, bonds, commodities, cash, and cash equivalents, including closed-end funds and exchange-traded funds (ETFs).

Expected Return

The weighted average of all possible returns for an investment, taking into account the likelihood of each outcome.

Portfolio

An assortment of financial assets such as shares, debts, natural resources, liquid cash, and near-cash items, encompassing mutual funds and Exchange-Traded Funds.

Joint Probability Distribution

A statistical measure that gives the probability of two or more events occurring simultaneously.