Discrete vs. Continuous Data
This type of data uses whole numbers you can count, like the number of students in class.
What is discrete data?
This data describes qualities, like the colour of a pet.
What is qualitative data?
Data you gather first-hand, like surveying your own class.
What is primary data?
This graph shows changes over time, like temperature each day, with connected lines.
What is a (broken) line graph?
What is the mode of the following set of numbers?
5 6 8 9 8
9
This type of data can have endless possible values in a range, like someone's height.
What is continuous data?
This data uses numbers, like how tall a tree is.
What is quantitative data?
Data from books or the internet that someone else collected.
What is secondary data?
Use this graph for counting things, like favourite fruits, and it can compare two groups.
What is a bar graph?
What is the median of the following set of numbers?
6 5 6 12 11 13 4
4 5 6 6 11 12 13 = 6
Distance run in a race is an example of this data type because it can be any number, like 5.3 km.
What is continuous data?
"Red, blue, or green" is this type of data because it's about descriptions, not counts.
What is qualitative data?
Asking friends their favorite colors is this type of data collection.
What is primary data?
This graph is great for parts of a whole, like slices of pizza flavours in class.
What is a circle graph?
What is the range of the following set of numbers?
23 32 54 65 32 45
65 - 23 = 42
The number of sides on a shape is this data type since you count whole numbers only.
What is discrete data?
The number of books on a shelf is this type since you can measure it with numbers.
What is quantitative data?
Reading facts from a library book about weather is this type of data.
What is secondary data?
This graph plots two sets of data to spot patterns, like height vs. age.
What is a scatter plot?
What is the mean of the following set of number?
32 43 54 12 45
32 + 43 + 54 + 12 + 45 = 186 / 5 = 37.2
37
Name two examples of continuous data from everyday life
Height, length, mass, etc.
Give an example of qualitative data.
What is (example like) colour or shape?
Why might primary data be more reliable? (Hint: It's fresh from your own work!)
Because you collect it yourself!
If a graph shows most kids like soccer, you can conclude it's the class favorite.
What is a conclusion from a graph?
What is the mean of the following set of numbers?
154 134 125 99
128