Exploring The Mean in 2021

This video tutorial covers the concept of measures of center, focusing on the mean, median, and mode. It explains how to calculate the mean, also known as the average or fair share, using examples like candy distribution and grading systems. The tutorial highlights the differences between the mean, median, and mode, emphasizing their roles in describing the center of data. It also discusses the application of mean in calculating grades, demonstrating how daily and test grades are averaged to determine a final score.

What statistic is used to describe categorical data?

• Mean

• Median

• Mode

• Range

What does the mode represent in a data set?

• The middle number when data is ordered

• The average value

• The difference between the highest and lowest values

• The most frequent number

Which of the following is NOT a measure of center?

• Mean

• Range

• Median

• Mode

What does the median represent in a data set?

• The difference between the highest and lowest values

• The middle number when data is ordered

• The average value

• The most frequent number

How is the mean calculated?

• By ordering the data and finding the middle value

• By adding all values and dividing by the number of values

• By subtracting the smallest value from the largest

• By finding the most frequent number

If Bianca, Jenny, and Xander shared 9 pieces of candy equally, how many pieces would each get?

• 3

• 2

• 4

• 5

If five friends shared 20 pieces of candy equally, how many pieces would each get?

• 3

• 6

• 4

• 5

What is the mean of the data set 0, 3, 2, 5, 10, 4?

• 3

• 5

• 4

• 6

How is a student's class grade calculated in Skyward?

• Based on test grades only

• Based on daily grades only

• A combination of daily and test grades

• Randomly assigned

What percentage of a student's grade is based on daily work?

• 80%

• 60%

• 40%

• 20%