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Gr 10 Math Lit: Ch 3.3 Classifying and Organising Data

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Gr 10 Math Lit: Ch 3.3 Classifying and Organising Data

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Questions and Answers

What is the main purpose of classifying data?

To make the data visually appealing

To collect more data

To organize and summarize the data (correct)

To make predictions about the data

What type of data can be measured using numbers?

Discrete data

Continuous data

Numerical data (correct)

Categorical data

What is an example of discrete data?

The amount of rainfall

A person's height

A person's weight

The number of bicycles (correct)

What is the purpose of a frequency table?

To show the list of categories or groups of items, along with their frequencies Signup and view all the answers

How do you find the total number of items when working with grouped data?

By summing the frequencies of all class intervals Signup and view all the answers

What is the purpose of using tallies?

To count how many of each group there are Signup and view all the answers

What type of data is represented by the colours of sweets in a jar?

Categorical data Signup and view all the answers

When organizing continuous data, what is included in each class interval?

Only the lower boundary Signup and view all the answers

Which type of numerical data would be used to measure the number of students in a classroom?

Discrete Data Signup and view all the answers

What is the primary difference between categorical and numerical data?

One can be measured and the other can't Signup and view all the answers

How are tallies used to organize data?

By representing each counted item with a line mark Signup and view all the answers

What is the purpose of grouping continuous data into class intervals?

To make the data easier to manage and organize Signup and view all the answers

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 Signup and view all the answers

What is an example of categorical data that can be classified?

The colour of a car Signup and view all the answers

Why is it important to include the lower boundary but not the upper boundary when creating class intervals?

To avoid overlapping intervals Signup and view all the answers

Which type of data is used to measure the amount of rainfall?

Continuous Data Signup and view all the answers