Canada Grade 6 Math Collecting, organizing, and displaying data

Which type of graph is best used to display the frequency of data in categories?

• Line graph

• Bar graph

• Pie chart

• Histogram

Answer explanation

A bar graph is ideal for displaying the frequency of data in categories, as it uses rectangular bars to represent the count of each category, making comparisons easy. Other options like line graphs and pie charts are less effective for this purpose.

If you have data on the number of books read by students in a month, which graph would be most appropriate to display this data?

• Line plot

• Bar graph

• Scatter plot

• Pie chart

Answer explanation

A bar graph is most appropriate for displaying the number of books read by students, as it effectively compares discrete categories (students) and their corresponding values (books read) visually.

What is the main purpose of a line plot?

• To show parts of a whole

• To display data over time

• To compare different categories

• To show frequency of data

Answer explanation

The main purpose of a line plot is to display data over time, showing trends and changes in frequency. It effectively illustrates how data points vary, making it easier to analyze patterns over a specific period.

Which of the following is a characteristic of a bar graph?

• It uses dots to represent data points

• It shows data in a circular format

• It uses bars to represent data

• It connects data points with lines

Answer explanation

A bar graph is characterized by using bars to represent data, making it easy to compare different categories. The other options describe different types of graphs, such as dot plots or line graphs.

In a line plot, what does each 'X' or dot represent?

• A category

• A data point

• A percentage

• A total

Answer explanation

In a line plot, each 'X' or dot represents a data point, which indicates a specific value or measurement at a given position on the graph. Therefore, the correct answer is 'A data point'.

Which graph would you use to show the change in temperature over a week?

• Bar graph

• Line graph

• Pie chart

• Histogram

Answer explanation

A line graph is ideal for showing changes over time, such as temperature fluctuations over a week. It effectively illustrates trends and patterns, making it the best choice compared to bar graphs, pie charts, or histograms.

What is the vertical axis on a bar graph typically used to represent?

• Categories

• Data values

• Time

• Percentages

Answer explanation

The vertical axis on a bar graph typically represents data values, indicating the quantity or measurement associated with each category displayed on the horizontal axis.

If you want to compare the number of students in different grades, which graph would be most suitable?

• Line plot

• Bar graph

• Line graph

• Pie chart

Answer explanation

A bar graph is most suitable for comparing the number of students in different grades as it visually represents discrete categories, making it easy to compare values across those categories.

What is the horizontal axis on a line graph typically used to represent?

• Data values

• Categories

• Time

• Percentages

Answer explanation

The horizontal axis on a line graph typically represents time, allowing viewers to track changes over a specific period. This is crucial for understanding trends and patterns in the data.

Which type of graph is best for showing parts of a whole?

• Line graph

• Bar graph

• Pie chart

• Histogram

Answer explanation

A pie chart is best for showing parts of a whole because it visually represents the proportion of each category as slices of a circle, making it easy to compare relative sizes.