Dot plots and Histograms Flashcard

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots representing the frequency of data points in a dataset.

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data, where the data is grouped into intervals.

Front

How do you find the total number of items sold over multiple days?

Back

Add the number of items sold each day together.

Front

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

Back

The height of a bar in a histogram represents the frequency of data points within that interval.

Front

What is the purpose of using graphs like dot plots and histograms?

Back

Graphs like dot plots and histograms help visualize data, making it easier to understand patterns and trends.

Front

How can you determine the number of people with a specific number of siblings from a dot plot?

Back

Count the number of dots that correspond to the specific number of siblings.

Front

What is the difference between a bar graph and a histogram?

Back

A bar graph displays categorical data with spaces between bars, while a histogram displays numerical data without spaces.

Front

How do you interpret the intervals in a histogram?

Back

Intervals in a histogram show the range of values for which data is grouped, indicating how many data points fall within each range.

Front

What is the significance of the x-axis in a histogram?

Back

The x-axis in a histogram represents the intervals or ranges of data.

Front

What is the significance of the y-axis in a histogram?

Back

The y-axis in a histogram represents the frequency of data points within each interval.