Graphs and Data - Pre & Post Assessment (3.8A/3.8B)

Front

What is a pictograph?

Back

A pictograph is a graph that uses pictures or symbols to represent data. Each picture represents a certain number of items.

Front

How do you find the difference in values on a graph?

Back

To find the difference, subtract the smaller value from the larger value.

Front

What is a bar graph?

Back

A bar graph is a chart that presents categorical data with rectangular bars. The length of each bar is proportional to the value it represents.

Front

What is a line plot?

Back

A line plot is a graph that shows data points along a number line, often used to display frequency.

Front

What is a tally chart?

Back

A tally chart is a way to record and count data using marks (tallies) to represent each count.

Front

How do you read a bar graph?

Back

To read a bar graph, look at the height or length of the bars to determine the value they represent.

Front

What does it mean if a subject has the most votes in a survey?

Back

It means that the subject was chosen more times than any other option by the respondents.

Front

How do you calculate the total from a graph?

Back

Add the values represented by the bars or symbols in the graph to find the total.

Front

What is the purpose of a dot plot?

Back

A dot plot is used to display the frequency of data points in a simple and visual way.

Front

How can you compare two values on a graph?

Back

You can compare two values by looking at their heights or lengths on the graph and determining which is greater.