Explanation: The mean of a data set is equal tot he sum of the set of numbers divided by however many numbers are in the set.
So to find the mean of the data set shown here,
let's begin by adding the numbers.
So we have 6 + 7 + 2 + 4 + 6 + 6 + 9 + 5 + 3 + 3.
Adding the numbers, we get 51.
Now, 51 will be divided by the number
of numbers in the set which is 10.
So 51 divided by 10 gives us 5.1.
So the mean of the data set is 5.1.
Now, the median is the middle number in the data set
when the data set is written from least to greatest.
So let's write our data set from least to greatest.
So we have 2, 3, 3, 4, 5, 6, 6, 6, 7, 9.
Notice that there are two numbers in the middle, 5 and 6.
In this situation, add the numbers and divide by 2.
So 5 + 6 is 11 and 11 divided by 2 is 5.5.
So the median is 5.5.