Flashcard - Statistical - Numerical - Categorical - Summarizing Data

Front

What is a statistical question?

Back

A statistical question is one that anticipates variability in the data and can be answered by collecting data that varies.

Front

What is a non-statistical question?

Back

A non-statistical question is one that can be answered with a single value or fact, without the need for data collection.

Front

What is the difference between numerical and categorical data?

Back

Numerical data represents quantities and can be measured (e.g., height, weight), while categorical data represents categories or groups (e.g., colors, types of animals).

Front

How do you find the mean of a data set?

Back

To find the mean, add all the numbers in the data set and then divide by the total number of values.

Front

What does it mean to summarize data?

Back

Summarizing data involves presenting it in a concise form, often using measures like mean, median, mode, and range.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, or not equal to the other.

Front

What symbol is used for 'greater than'?

Back

>

Front

What symbol is used for 'less than'?

Back

<

Front

What does an open dot represent on a graph of an inequality?

Back

An open dot indicates that the value at that point is not included in the solution set (used for > and <).

Front

What does a closed dot represent on a graph of an inequality?

Back

A closed dot indicates that the value at that point is included in the solution set (used for ≥ and ≤).