Algebra 1 : Statistics and Probability
Study concepts, example questions & explanations for Algebra 1
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Example Questions
Example Question #111 : How To Find Mean
Find the mean given the following dataset:
In order to find the mean, or the average, we will need to sum all the numbers in the set and divide the quantity by the number of numbers in the set.
Add the numerator.
This fraction cannot be simplified any futher.
The average is:
Example Question #111 : How To Find Mean
A group of 7th graders took a Mathematics exam. The exam was worth a total of 
Find the mean score rounded to the nearest whole percent.
To find the mean (or average), use the following formula:
So, by substituting, we get
The mean rounded to the nearest whole percent is 
Example Question #112 : How To Find Mean
Find the mean.
To find the mean, we add all the numbers and divide by the how many numbers are in the set.
Example Question #113 : Statistics And Probability
If Joe scored an average of 
So for 
Example Question #112 : How To Find Mean
A class has a sum of test scores of 
Cannot be determined
Average is another way of describing mean. The mean represents the "central" value of a set of numbers. This is achieved by summing the numbers of a set and dividing it by the number of numbers in the set.
In this problem, the sum of all the scores is already provided. Because there are 
Example Question #112 : How To Find Mean
If Sally, Max, Alice, Alex, and Damien have scores of 
Average is another way of describing mean. The mean represents the "central" value of a set of numbers. This is achieved by summing the numbers of a set and dividing it by the number of numbers in the set.
In this problem, we are given five scores. In order to begin this problem, we must take the sum of these scores.
Now in order to find the mean, we must divide this number by the number of scores.
Example Question #112 : How To Find Mean
Find the mean of the following numbers:
The mean, or average, of a set of numbers is found by using the following formula.
We get
Example Question #113 : How To Find Mean
Find the mean of the following data set.(Round to the nearest whole number)
Find the mean of the following data set.(Round to the nearest whole number)
To find the mean, add up all the terms and then divide by the total number of terms.
In this case, we have 9 terms, so we get...
So our answer is 33.
Example Question #114 : How To Find Mean
Find the mean of the following values:
The mean is the average of the 5 numbers, so:
Example Question #115 : How To Find Mean
Find the mean of the following set of numbers:
To solve, you must sum up the numbers and divide by the quantity. Thus,
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