Algebra II : Mean
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Example Questions
Example Question #81 : Mean
Find the mean of the numbers:
The mean is the average of all the numbers in the given data set.
Add all the numbers and divide by six.
Reduce this fraction.
The answer is:
Example Question #81 : Mean
Determine the mean of the following numbers:
The mean is defined as the average of all the numbers in the data set.
Add all the numbers and divide by five, since there are five numbers provided.
The answer is:
Example Question #172 : Data Properties
Determine the mean of the following numbers:
The mean is the average of all the numbers provided in the data set.
Add all the numbers.
Divide this number by seven since there are seven numbers.
The answer is:
Example Question #82 : Mean
Determine the mean of the numbers:
The mean is the average of all the numbers given.
Add the numbers.
Since there are five given numbers, divide this value by five.
The answer is:
Example Question #84 : Mean
Peter scored a 50 and an 80 on his first two exams. There are only four exams in his class and the highest possible score on his exam is a 100. What is the minimum score that Peter must make on his third exam to ensure that he will have a chance to pass the class with an average of 70 after Peter takes his fourth exam?
Set up an equation such that the average of all four scores equal to 70.
Let 
Multiply both sides by four and simplify the numerator.
Subtract 130 on both sides.
Notice that we are looking for Peter's minimum third score that he must make to have a chance at passing the class. The maximum score that Peter can make on his fourth test is 100 and cannot be higher.
Substitute 100 for the y-variable, which represents Peter's fourth test.
Subtract 100 from both sides.
This means that if Peter scored a 50 or higher, he will have a chance of passing the class. Any lower than 50 on his third test will require a score higher than 100 on his fourth test, which is not possible, and Peter will fail the class regardless of what he makes on his fourth test.
The answer is:
Example Question #83 : Mean
Determine the mean of the following numbers:
To determine the mean, first add all the numbers in the data set.
Divide this value by five since there are five numbers provided.
The answer is:
Example Question #87 : Mean
Determine the mean of the following numbers:
The mean is defined as the average of all numbers given in the data set.
Add the values.
Divide this value by four and reduce the fraction.
The mean is:
Example Question #84 : Mean
Determine the mean of the numbers:
Add all the numbers in the data set.
Divide this value by 6, since there are six numbers.
The answer is:
Example Question #89 : Mean
Determine the mean of the data set:
In order to determine the mean of the set of numbers, sum all the numbers provided.
Since there are seven numbers given, we will need to divide this value by seven.
The answer is:
Example Question #211 : Basic Statistics
Determine the mean of the numbers provided:
Add all the numbers.
The sum is 
Divide this value by five since there are five numbers. This is similar to multiplying by one-fifth.
The answer is:
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