Which Is Not One of the Four Basic Symbols Used

question 28

Multiple Choice

Which is not one of the four basic symbols used to chart data movement on data flow diagrams?

• A) an oval
• B) arrow
• C) rectangle with rounded corners
• D) open-ended rectangle

---

Definitions:

Prediction Intervals

A range of values within which a future observation is expected to fall, with a certain level of confidence.

Prediction Interval

A range of values within which a future observation is expected to fall, with a certain probability.

Confidence Interval

A spread of values obtained from statistical scrutiny of samples, presumed to potentially contain the value of an undetermined population parameter.

Confidence Interval Estimate

An interval of values calculated from a sample that is expected to include the value of an unseen population parameter, with a certain degree of confidence.