To find the mean of a data set, we will use the following formula:

So, given the data set

we can find the sum of the numbers in the set.  To find the sum, we will add all the numbers together.

Now, we will find the number of numbers within the set.  To do this, we will just count and see how many numbers are in the set.

Now, we can substitute what we know into the formula.  We get

Therefore, the mean of the data set is .

Find the mean of the following data set.

To find the mean, we must find the average.

To do so, find the sum of our terms, and divide by the number of terms.

Now, we have eleven terms, so...

So, we can say that our mean is 76

To find the mean, or the average, we will use the following formula:

So, given the set

we will first find the sum.  To find the sum, we will add all of the numbers.  So,

Now, we will determine the number of numbers within the set.  In other words, we will count and see how many numbers are within the set. So,

Now, we will substitute this into the formula.  We get

We can cancel the zero in  and the zero in .  We get

Therefore, the mean of the data set is .

To find the mean (or average) of the data set, we will use the following formula:

Now, given the set

we will first find the sum.  To find the sum, we will add all of the numbers together. So,

Now, we will find the number of numbers in the set.  To do this, we will simply count and see how many numbers are in the set. We get

Now, we can substitute what we know into the formula.  We get

Therefore, the mean of the data set is .

To find the mean of a data set, we will use the following formula:

So, given the set

we can calculate the following.

We can also calculate the following.

because if we count and see how many numbers are in the set, we count 10 numbers.

Now, knowing this, we can substitute into the formula.  We get

Therefore, the mean of the data set is 6.

To find the mean of a data set, we will use the following formula:

Now, given the set

we can calculate the following:

Now, we can calculate the following:

because if we count the numbers within the set, we can see there are 11 numbers.

Knowing this, we can substitute into the formula.  We get

Therefore, the mean of the data set is 5.

To find the mean of the data set, we will use the following formula:

So, given the data set

we can calculate the following:

Now, we can calculate the following:

because if we count the numbers in the set, we can see there are 11 numbers.

Now, knowing this, we can substitute into the formula.  We get

Therefore, the mean of the data set is 6.

To find the mean, we will use the following formula:

Now, given the set

We can calculate the following:

Now, we can calculate the following:

Because there are 11 numbers in the set.

Knowing this, we can substitute into the formula.  We get

Therefore, the mean of the data set is 87.

To find the mean of a data set, we will use the following formula:

Now, given the set

we can calculate:

We can also calculate:

because if we were to count the numbers in the set, we would count 12.

So, we get

Therefore, the mean of the data set is 8.

The mean is the average of all the numbers given.

Sum all the numbers and divide by the total by five.

The answer is: