Understanding Mean, Mode, Median, and Range

This video tutorial explains how to find the mean, mode, median, and range of a set of numbers. It begins with definitions of each term, followed by step-by-step calculations using a sample data set. The mean is calculated by averaging the numbers, the mode is identified as the most frequent number, the median is found by ordering the numbers and selecting the middle one, and the range is determined by subtracting the smallest number from the largest. The video concludes with a summary and encourages viewers to practice with a new set of numbers.

What is the term used to describe the number that appears most frequently in a data set?

• Mean

• Mode

• Range

• Median

How do you calculate the mean of a set of numbers?

• Subtract the smallest number from the largest

• Identify the most frequent number

• Add all numbers and divide by the number of numbers

• Find the middle number

In the data set [43, 24, 54, 70, 80, 34, 36, 36, 29], what is the mean?

• 64

• 36

• 46

• 54

Which number is the mode in the data set [43, 24, 54, 70, 80, 34, 36, 36, 29]?

• 36

• 54

• 70

• 24

What is the median of the data set [24, 29, 34, 36, 36, 43, 54, 70, 88]?

• 54

• 43

• 36

• 34

If a data set has an even number of elements, how is the median calculated?

• By dividing the sum by the number of elements

• By subtracting the smallest from the largest

• By averaging the two middle numbers

• By finding the most frequent number

What is the range of the data set [24, 29, 34, 36, 36, 43, 54, 70, 88]?

• 54

• 74

• 64

• 84

How is the range of a data set determined?

• By finding the average of all numbers

• By finding the middle number

• By subtracting the smallest number from the largest

• By identifying the most frequent number

Which of the following is NOT a measure of central tendency?

• Median

• Range

• Mode

• Mean

What should you do if you have two middle numbers in a data set?

• Choose the larger number

• Choose the smaller number

• Average the two numbers

• Ignore both numbers