Understanding Mean, Median, and Mode

What is the mean of the numbers 4, 8, 6, 5, and 3?

Find the median of the following set: 12, 15, 11, 14, 13.

What is the mode of this data set: 2, 3, 4, 4, 5, 6?

If the mean of the numbers 10, 20, 30, and x is 25, what is x?

Determine the median of these numbers: 7, 9, 5, 3, 8.

What is the mode of the following numbers: 1, 2, 2, 3, 4, 4, 4, 5?

Calculate the mean of the data set: 5, 10, 15, 20, 25.

If the median of the numbers 3, 7, 9, 5, and 11 is 7, what is the middle number when arranged?

What is the mode of this set: 8, 8, 9, 10, 10, 10, 11?

In a class, the ages of students are 10, 11, 10, 12, and 10. What is the mode?