In a Data Flow Diagram (DFD),the Gane and Sarson Symbol

question 1

Multiple Choice

In a data flow diagram (DFD) ,the Gane and Sarson symbol for a data flow is a _____.

• A) segment of a differentiable curve
• B) line with a single or double arrowhead
• C) flat rectangle that is open on the right side and closed on the left side
• D) triangle,which may be shaded to make it look three-dimensional

---

Definitions:

Average Weight

The mean weight calculated by summing all the individual weights and dividing by the number of weights.

Inferential Statistics

Inferential statistics involve using data from a sample to make estimates or test hypotheses about the population from which the sample was taken.

Sample

A group of people or observations chosen from a broader population intended for statistical study.

Population

The complete collection of people or cases that are the focus of the study.