16 Questions
What is the main purpose of classifying data?
To organize and summarize the data
What type of data can be measured using numbers?
Numerical data
What is an example of discrete data?
The number of bicycles
What is the purpose of a frequency table?
To show the list of categories or groups of items, along with their frequencies
How do you find the total number of items when working with grouped data?
By summing the frequencies of all class intervals
What is the purpose of using tallies?
To count how many of each group there are
What type of data is represented by the colours of sweets in a jar?
Categorical data
When organizing continuous data, what is included in each class interval?
Only the lower boundary
Which type of numerical data would be used to measure the number of students in a classroom?
Discrete Data
What is the primary difference between categorical and numerical data?
One can be measured and the other can't
How are tallies used to organize data?
By representing each counted item with a line mark
What is the purpose of grouping continuous data into class intervals?
To make the data easier to manage and organize
When working with grouped data, how do you find the number of items less than a certain value?
By summing the frequencies of all relevant class intervals
What is an example of categorical data that can be classified?
The colour of a car
Why is it important to include the lower boundary but not the upper boundary when creating class intervals?
To avoid overlapping intervals
Which type of data is used to measure the amount of rainfall?
Continuous Data
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