Algebra 1 : Statistics and Probability
Study concepts, example questions & explanations for Algebra 1
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Example Questions
Example Question #131 : Statistics And Probability
Find the mean of the following set of numbers:
None
To find the mean, simply add the numbers and divide by their quantity. Thus,
Example Question #132 : Statistics And Probability
Find the mean:
The mean is the sum of all numbers in the set divided by the total of numbers in the set.
Add all the percentages.
Divide the percentage by three.
The value of 
The answer is 
Example Question #133 : Statistics And Probability
What is the class average if the students have the following scores?
The problem is asking us to solve for the class average. This is another term for mean. In order to find the mean, we need to add up all of the numbers and divide by the number of numbers given.
When we count the number of scores given, we can see there are 13. Therfore, we must divide 1047 by 13 to achieve our final answer.
Example Question #134 : Statistics And Probability
Tom is driving from Los Angeles to San Francisco. During his drive, he cruise controlled his car for an hour at different speeds. These speeds were
What was his average speed when he was cruise controlling?
The problem is asking us to solve for the average speed Tom drove. This is another term for mean. In order to find the mean, we need to add up all of the numbers and divide by the number of numbers given.
When we count the number of time he cruise controlled his car, we can see there are 5. Therfore, we must divide 388 by 5 to achieve our final answer.
Example Question #135 : Statistics And Probability
Find the mean:
The mean is the sum of all numbers in the set divided by the total of numbers in the set.
Add all the percentages.
Divide the percentage by three.
The value of 
The answer is 
Example Question #136 : Statistics And Probability
A class of kindergarteners go to an apple orchard for a field trip. The students are allowed to pick apples. The following is a list of how many apples each student picked.
What is the average number of apples picked?
The problem is asking us to solve for the average number of apples picked. This is another term for mean. In order to find the mean, we need to add up all of the numbers and divide by the number of numbers given.
When we count the number of students accounted for, we can see there are 17. Therfore, we must divide 62 by 17 to achieve our final answer.
Example Question #137 : Statistics And Probability
A group of students recorded data on the amount of rainfall that occurred in their town daily. They recorded the data in inches.
What was the average amount of rainfall?
The problem is asking us to solve for the average amount of rainfall. This is another term for mean. In order to find the mean, we need to add up all of the numbers and divide by the number of numbers given.
When we count the number of days the students recorded rainfall, we can see there are 8. Therfore, we must divide 30 by 8 to achieve our final answer.
Example Question #138 : Statistics And Probability
Find the mean of the following dataset:
To find the mean, add all the numbers in the data set and divide by the total amount of numbers given.
Add all the numbers.
Divide this number by four.
The answer is:
Example Question #139 : Statistics And Probability
Find the mean of the following dataset:
To find the mean, add all the numbers in the data set and divide by the total amount of numbers given.
Add all the numbers.
Divide this number by four.
The answer is:
Example Question #140 : Statistics And Probability
Find the mean of the following set of numbers:
To calculate the mean of any set of 
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