What Is a Bar Chart

question 67

Multiple Choice

What is a bar chart?

• A) A type of graph in which a circle is divided into sectors that each represent a proportion of the whole.
• B) A chart or graph that presents grouped data with rectangular bars with lengths proportional to the values that they represent.
• C) A graphical display of data using bars of different heights. It is similar to a bar chart, but a histogram groups numbers into ranges.
• D) A small embedded line graph that illustrates a single trend.

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Definitions:

Alternative Hypothesis

In hypothesis testing, the hypothesis that proposes a difference or effect, contrary to the null hypothesis, which implies no effect or difference.

Null Hypothesis

A statement or assumption that there is no effect or no difference, and it serves as the starting point for statistical testing.

Sample Proportion

The fraction or percentage of observations in a sample that belong to a particular category, used to estimate the proportion in the entire population.

Two-Tailed Hypothesis

A statistical test hypothesis that considers both directions of deviation from the null hypothesis, thus testing for the possibility of both positive and negative effects.