Which of the Following Notations in an E-R Diagram Means

question 72

Multiple Choice

Which of the following notations in an E-R diagram means that the entity is optional and a relationship need not have an entity of that type?

• A) vertical bar
• B) arrow
• C) double line
• D) small oval
• E) triangle

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Definitions:

Common Ratio

The common ratio in a geometric sequence is the constant factor between consecutive terms.

Geometric Sequence

A sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.

Geometric Sequence

An ordered list of numbers in which every term succeeding the initial one is obtained by multiplying the preceding term by a constant, non-zero value known as the ratio.

Nth Term

The term located at position n in a sequence, where n represents a particular position number.