Statistics: Mean, Median, Mode, Range

The video tutorial covers the concepts of mean, median, mode, and range. It explains how to calculate the mean by adding numbers and dividing by the count, how to find the median by arranging numbers and identifying the middle value, how to determine the mode by identifying the most frequent number, and how to calculate the range by subtracting the smallest number from the largest. Each concept is illustrated with examples to aid understanding.

What is the first step in calculating the mean of a set of numbers?

• Divide the total by the number of values

• Find the middle number

• Add all the numbers together

• Subtract the smallest number from the largest

If the sum of a set of numbers is 49 and there are 7 numbers, what is the mean?

• 8

• 6

• 7

• 5

What is the median of the following set of numbers arranged in order: 3, 5, 7, 9, 11?

• 9

• 7

• 11

• 5

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

• Average the two middle numbers

• Choose the smaller number

• Choose the larger number

• Add the two middle numbers

In a set of numbers, if 6 and 6 are the two middle numbers, what is the median?

• 8

• 7

• 6

• 5

What does the mode represent in a set of numbers?

• The difference between the highest and lowest numbers

• The number that occurs most often

• The middle number

• The average of the numbers

In the set {3, 5, 5, 6, 8, 10, 12}, what is the mode?

• 3

• 5

• 6

• 8

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

• Find the middle number

• Add the smallest and largest numbers

• Subtract the smallest number from the largest

• Find the average of the numbers

If the ages of kids are 3, 5, 7, 9, 12, what is the range?

• 8

• 7

• 9

• 5

What is the range if the smallest number is 3 and the largest number is 12?

• 6

• 7

• 8

• 9