Bar Graphs and Dot Plots

Front

What is a bar graph?

Back

A bar graph is a visual representation of data using bars of different heights or lengths to compare quantities.

Front

What is a dot plot?

Back

A dot plot is a statistical chart that uses dots to represent the frequency of data points in a simple and clear manner.

Front

How do you find the range of a data set?

Back

The range is found by subtracting the smallest value from the largest value in the data set.

Front

What does the median represent in a data set?

Back

The median is the middle value when the data points are arranged in order.

Front

How do you calculate the percentage of a part compared to a whole?

Back

To calculate the percentage, divide the part by the whole and multiply by 100.

Front

What is the purpose of using graphs in data representation?

Back

Graphs help to visualize data, making it easier to understand trends, comparisons, and patterns.

Front

What does it mean if a bar is taller in a bar graph?

Back

A taller bar indicates a greater quantity or frequency of the category it represents.

Front

How can you interpret a dot plot?

Back

In a dot plot, each dot represents one occurrence of a value, allowing you to see the distribution and frequency of data.

Front

What is the difference between a bar graph and a dot plot?

Back

A bar graph uses bars to show quantities, while a dot plot uses dots to represent individual data points.

Front

How do you determine the mode of a data set?

Back

The mode is the value that appears most frequently in the data set.