Teresa counted the number of tomatoes in 9 baskets at a vegetable stand. The list shows the data. 11, 12, 8, 12, 8, 8, 11, 11, 9
What is the difference between the mean and median of the data?
To find the mean, we need to sum up all the numbers in the data set and then divide by the total number of baskets.
Sum of the numbers: 11 + 12 + 8 + 12 + 8 + 8 + 11 + 11 + 9 = 90
Mean: 90 / 9 = 10
To find the median, we need to arrange the numbers in numerical order and find the middle value.
Arranging the numbers in ascending order: 8, 8, 8, 9, 11, 11, 11, 12, 12
Median: 11
The difference between the mean and median is 11 - 10 = 1.
Therefore, the difference between the mean and median of the data is 1.