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How do you use number line to calculate the average of two different averages?
Wiki User
∙ 11y ago
You cannot. It should be their weighted average with the weights representing the number of observations in each average.
For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).
It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...
You cannot. It should be their weighted average with the weights representing the number of observations in each average.
For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).
It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...
You cannot. It should be their weighted average with the weights representing the number of observations in each average.
For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).
It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...
You cannot. It should be their weighted average with the weights representing the number of observations in each average.
For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).
It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoYou cannot. It should be their weighted average with the weights representing the number of observations in each average.
For example, if 3 numbers have an average of 10 and 6 numbers have an average of 20, the combined average is not the average of 10 and 20 (which is 15).
It is, in fact, (3*10 + 6*20)/(3 + 6) = (30+120)/9 = 150/9 = 16.66...
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How do you calculate an average with fractions?
The same way you calculate averages with whole numbers: Add up all the fractions and divide by the number of fractions there are.
Can you average an average?
You can get the average of an average, but you would be averaging one number, so you would get the same result. You can get the average of a set of averages, though to make sense they will often need to be a weighted average of averages.
What is the averages 197201208?
The average of one number is itself, so the answer is 197201208.The average of one number is itself, so the answer is 197201208.The average of one number is itself, so the answer is 197201208.The average of one number is itself, so the answer is 197201208.
Why do you calculate averages in biology?
All organisms vary, even within a species and a habitat. A seedling growing in the shade will be likely to be taller than one in full sunshine. Animals in the same litter may have different masses depending on their genes and their food. An average quantity gives us a quick picture of what we are measuring. For instance, red foxes vary enormously in mass, from 2.2 to 14 kg, so looking at the individual mass of one fox tells us little. The average mass can be compared to other species, or averages within an area allow us to compare them from place to place. Foxes in Maryland average only 4.3 kg whereas in Scotland the average mass is 7.3 kg.
How can you average averages?
-- Multiply the first averages by the number of observation for each set of these. -- Add up the sets of averages. -- Divide the sum by the total number of observations (Add cardinaility of each set). -- The result is the average of the averages. If you say have 4 "average" value and just add these, and divide by 4, the result is "unfair" because average may be of 3 observations, while another of 1000. So, to "compensate" and make every observation just as valuable, you re-generate the "sum of sums" and then divide by the total number of observations. If all sets are the same you can divide by number of observations.
How do schools calculate grade point averages?
There is not an Universal System for calculating Grade Point Averages. One way to calculate your grade point average is the - 4 Pointer. Record the point value for each grade (each Class) and add all the values. Then take that number and divide by the number of classes you are taking and you will have your GPA averages. You can find the full directions on how to calculate Grade Point Averages online at WikiHow. They have several different ways to caluculate your GPA.
How do you calculate an average with fractions?
The same way you calculate averages with whole numbers: Add up all the fractions and divide by the number of fractions there are.
What is a baseball average?
There are many different averages in baseball A batting average is the number of hits divided by the number of at-bats An earned run average (ERA) is the number of runs allowed by a pitcher divided by the number of innings he has pitched if you want more kinds of averages edit question or flag it hope this helped
Can you average an average?
You can get the average of an average, but you would be averaging one number, so you would get the same result. You can get the average of a set of averages, though to make sense they will often need to be a weighted average of averages.
What are averages used for?
an average is the most frequent number (or result) in a set of data.
What is the average number of tornadoes in Minnesota?
Minnesota averages about 45 tornadoes per year.
What is the average number of tornadoes in Arkansas?
Arkansas averages 40 tornadoes per year.
What is the average number of tornadoes in Virginia?
Virginia averages 6 to 10 tornadoes each year.
If you have the average how to calculate the total?
Multiply the average by the number of terms.
What is the averages 197201208?
The average of one number is itself, so the answer is 197201208.The average of one number is itself, so the answer is 197201208.The average of one number is itself, so the answer is 197201208.The average of one number is itself, so the answer is 197201208.
What is the average number of tornadoes per year in Texas?
Texas averages about 150 tornadoes per year.
What is the average number of tornadoes Kansas sees in a year?
Kansas averages about 95 tornadoes per year.
