Question

What are variables? List down rules for variable declaration.​

Answer 1

Answer:

All variable names must begin with a letter of the alphabet or an underscore(_). After the first initial letter, variable names can also contain letters and numbers. Variable names are case sensitive. No spaces or special characters are allowed

Explanation:

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Answer 2

$\large\fbox\red{Answer}$

Variables represents the measurable traits that can change over the course of a scientific experiment. In all there are six basic variable types: dependent, independent, intervening, moderator, controlled and extraneous variables.

Rules :

• All variable names must begin with a letter of the alphabet or an. underscore( _ ).

• After the first initial letter, variable names can also contain letters and numbers.

• Uppercase characters are distinct from lowercase characters.

• You cannot use a C++ keyword (reserved word) as a variable name.

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