Qualitative vs Quantitative
What is qualitative data?
Things you describe in words.
What is discrete data?
Discrete data is data that can be counted (e.g., number of siblings). Discrete data can only be whole numbers (no fractions or decimals).
A f_______ table helps us to organize data in a simple chart that is easy to read.
A frequency table.
How do you convert a fraction to a decimal?
Divide the numerator (top number) by the denominator (bottom number), which will give you the decimal.
What is quantitative data?
Numerical information (involves the use of numbers).
What is continuous data?
Continuous data is data that can be measured, but not counted. Can include whole numbers, fractions, and decimals (e.g., height, temperature, weight, length).
A bar graph is another great way to display data on a frequency chart. True or false?
True!
How do you convert a decimal to a percentage?
Multiply the decimal by 100 (or move the decimal 2 places to the right) Example: 0.25 x 100 = 25%
A student collects the birth months of everyone in their class. Is this qualitative or quantitative?
Qualitative (words) because birth months are categories.
The temperature outside is continuous because it can range and include decimals. True or false?
True!
What is the total frequency if the categories have frequencies of 5, 10, 8 and 7?
30!
What is 17/25 (fraction) as a decimal. Use your calculator.
0.68
The amount of money someone has in their wallet is qualitative data because it describes how much money they have. True or false?
False! Quantitative data because it does involves numbers.
A student says that the number of centimetres in someone's height is discrete because it can only be whole numbers. True or false?
False! Height is continuous because it can include decimals (e.g., 150.5 cm).
A class votes for their favourite colour:
6 students choose red.
4 students choose blue.
12 students choose yellow.
What is the total frequency? How would you figure it out?
Add all the frequencies together: 6 + 4 + 12 = 22 students.
What is 0.34 as a percentage? Use your calculator.
34%