Type of Data
What do we call information we collect for a survey or investigation?
Data
Name one way to collect data from your classmates.
Asking questions, handing out surveys, or using a tally chart.
What is a picture graph?
A graph that uses pictures or symbols to show data.
When you look at a graph, how do you find which item has the most votes?
Find the column, picture, or section that is tallest, longest, or has the most symbols.
True or False: Data can be about numbers or words
True
If you want to know everyone’s favourite fruit, what question might you ask?
"What is your favourite fruit?"
Name two types of graphs you can use to show data.
Picture graph and column graph (or bar graph, line graph, tally chart, dot plot).
If a graph shows favourite animals, how would you tell how many voted for 'dog'?
Count the number in the 'dog' column, bar, or group of pictures.
Give an example of data that you might collect in your classroom that is about the NUMBER.
Teacher jugment
E.g. The number of books each student has; the number of siblings; their ages, etc.
Why is it important to ask the same question to everyone in your survey?
To make sure your data is fair and accurate.
What is a column graph?
A graph that uses vertical bars to show amounts for each category.
What does it mean if two columns in a graph are the same height?
The categories have the same number of votes or data.
Give an example of categorical data you might collect in your classroom.
*Categorical data means TYPE of ...
Teacher jugment
E.g. Favourite fruit, favourite colour, type of pet, etc.
What should you do if some classmates don't answer your question?
Try asking again, make a note of missing responses, or find another way to get their answers.
When would you use a column graph instead of a picture graph?
When you have a lot of numbers or want to show the similarities and differences clearly.
What can you tell about the smallest column or group in your graph?
It was the least popular or had the least data collected.
What 3 features of a column graph must be labelled?
The title of the graph (e.g. 'Favourite type of pet in 3C')
The x axis - e.g. 'Pets'
The y axis - e.g. 'Number of Students'
Describe how you would record data on the different pets your classmates have.
Make a table listing pet types, use a tally chart for each kind, or record each response then count totals.
What should you remember when drawing the scale for a graph?
Keep the scale consistent and clear, so each unit is the same size and easy to read.
How could you use data from a graph to make a decision for your class (e.g., planning an event)?
Choose the most popular option based on the data; the graph helps you see the class’s preferences.