What Does the 'Error Bar' on an Error Bar Chart

question 4

Multiple Choice

What does the 'error bar' on an error bar chart represent?

• A) The confidence interval round the mean.
• B) The standard error of the mean.
• C) The standard deviation of the mean.
• D) It can represent ant of a, b or c

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Definitions:

Earned

Money obtained in return for labor or services provided.

Public Assistance

Government programs designed to provide financial or other aid to individuals or groups in need.

Permanent Underclass

A segment of the population that experiences persistent poverty and social disadvantages, making upward mobility difficult.

Poverty Line

The minimum level of income deemed necessary to achieve an adequate standard of living in a given country.