Final answer:
An array refers to a collection of elements that all share the same data type, while a group of related variables with different types is known as a structure, record, or object, not an array.
Step-by-step explanation:
The statement that when you group together related variables with different data types, the group is referred to as an array of variables, or, more simply, an array is False. An array is a collection of elements that have the same data type.
The correct term for a group of related variables that may have different data types is a structure in C or C++, a record in Pascal, or an object in object-oriented programming languages such as Java and Python. This grouping allows for the organization and manipulations of these variables as a single entity.