Mean, Median, Mode, and Range

This video tutorial explains the concepts of mean, median, mode, and range. It begins with a definition of each term, followed by a detailed example demonstrating how to calculate these statistical measures. The mean is calculated by adding all numbers and dividing by the count. The median is the middle value in an ordered list, with special instructions for even-numbered lists. The mode is the most frequently occurring number, and the range is the difference between the highest and lowest numbers. The video concludes with a practice question for viewers to try on their own.

What is the mean of a set of numbers?

• The number that appears most frequently

• The middle value in an ordered list

• The sum of all numbers divided by the count of numbers

• The difference between the highest and lowest numbers

How do you find the median when there are two middle numbers?

• Choose the larger number

• Choose the smaller number

• Add the two numbers and divide by two

• Multiply the two numbers

Which of the following best describes the mode?

• The average of all numbers

• The number that appears most frequently

• The middle value in an ordered list

• The difference between the highest and lowest numbers

What is the range of a set of numbers?

• The number that appears most frequently

• The sum of all numbers

• The average of all numbers

• The difference between the highest and lowest numbers

In the example provided, what is the median of the list of numbers?

• -4

• 3

• 2.4 recurring

• 7