Analyzing Histograms

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, where the data is divided into intervals (bins) and the frequency of data points in each interval is represented by the height of the bars.

Front

What is the purpose of a relative frequency table?

Back

A relative frequency table shows the proportion of observations within each category relative to the total number of observations, allowing for comparison across different datasets.

Front

What does the height of a bar in a histogram represent?

Back

The height of a bar in a histogram represents the frequency (or count) of data points that fall within the corresponding interval.

Front

Define 'data' in the context of statistics.

Back

Data is a collection of facts, figures, or information collected about people, objects, or events, which can be analyzed to draw conclusions.

Front

What is an interval in a histogram?

Back

An interval in a histogram is a range of values that groups data points together, often represented as a bar on the histogram.

Front

How do you determine the number of units tall a bar should be in a histogram?

Back

To determine the height of a bar in a histogram, count the number of data points that fall within the corresponding interval.

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram, but retains the original data values.

Front

What is the difference between a histogram and a dot plot?

Back

A histogram displays data in intervals with bars representing frequency, while a dot plot shows individual data points as dots along a number line.

Front

What is frequency in statistics?

Back

Frequency refers to the number of times a particular value or range of values occurs in a dataset.

Front

What is an attribute in data collection?

Back

An attribute is a characteristic or property of the data being collected, such as test scores, age, or height.