The area between the mean and 1 standard deviation above or below the mean is about 0.3413 or 34.13%
If you're talking about geometry, then the "mean" = "average". In that case 50% (half) of surface area is above the mean and 50% (half) is below.
4.55% falls outside the mean at 2 standard deviation
34.1% of the data values fall between (mean-1sd) and the mean.
The formula for calculating the mean percentage score is to first add up all individual scores, then divide the total by the number of scores. This will give you the mean score. To convert the mean score to a percentage, you would then divide the mean score by the total possible score and multiply by 100. This will give you the mean percentage score.
eg 5 10 15, the mean would be 10 and if we want the mean percentage its the percentage of the total so 10/20x100/1, which is 50%
If you're talking about geometry, then the "mean" = "average". In that case 50% (half) of surface area is above the mean and 50% (half) is below.
In a normal distribution half (50%) of the distribution falls below (to the left of) the mean.
because it falls within my area of expertis
4.55% falls outside the mean at 2 standard deviation
If you mean the town of Bedford Falls in the film It's a Wonderful Life, although it is fictional it is believed to be modeled on Seneca Falls in New York State. See the link below as well as Wikipedia on the movie.
34.1% of the data values fall between (mean-1sd) and the mean.
There must be a formula, but in the mean time there is a handy site that does it for you. [See related link below for the converter]
One standard deviation for one side will be 34% of data. So within 1 std. dev. to both sides will be 68% (approximately) .the data falls outside 1 standard deviation of the mean will be 1.00 - 0.68 = 0.32 (32 %)
The formula for calculating the mean percentage score is to first add up all individual scores, then divide the total by the number of scores. This will give you the mean score. To convert the mean score to a percentage, you would then divide the mean score by the total possible score and multiply by 100. This will give you the mean percentage score.
He/she/it falls.
Approximately 6.68% of the population falls within one standard deviation above the mean IQ score of 100, which includes an IQ of 128.
Not sure what you mean by "the" waterfall, but the most famous one is (surprise!) Yosemite Falls. There is also Ribbon Falls, Bridalveil Falls, Nevada Falls, Vernal Falls, Horsetail Falls, Illilouette Falls, and Wapama Falls.