0
2.738612788
First, find the mean (average) of all the numbers:
1+2+3+4+5+6+7+8+9 = 45
45 / 9 = 5
Mean is 5
Now take every number and calculate how far it is away from the mean, then square that number
1-5 = -4 ^2 = 16
2-5 = -3 ^2 = 9
3-5 = -2 ^2 = 4
4-5 = -1 ^2 = 1
5-5 = 0 ^2 = 0
6-5 = 1 ^2 = 1
7-5 = 2 ^2 = 4
8-5 = 3 ^2 = 9
9-5 = 4 ^2 = 16
Next, add all the results:
16+9+4+1+0+1+4+9+16 = 60
Then divide by the sample size minus 1 (n-1):
60 / 8 = 7.5
Finally, find the square root of that number:
7.5^ 0.5 = 2.738612788
Answer: 2.738612788
What else can I help you with?
What is a cubic polynomial function in standard form with zeros 1 -2 and 2?
It is x^3 - x^2 - 4x + 4 = 0
What equation is in standard form and represents a line with slope 1 through the point 3 5?
It is: y-5 = 1(x-3) => y = x+2 or as x+2-y = 0
How many halves are the sames as 3 wholes and 1 half?
The answer would be 7 because each whole is equal to 1 half also 3 wholes and 1 half is a mixed number which would be in standard 3 1/2.
What is half of three in fraction form?
Half of 3 means 3 divided by 2 or 3 multipled by 1/2. Thus 1/2 X 3 = 3/2.
What is this quadratic equation written in standard form of x2 - 2 equals -2x2 plus 5x?
It is: 3x2-5x-2 = 0 and the value of x is -1/3 or 2 when solved
What is the standard deviation 2 3 4?
For 2 3 4: σ=1
What is the standard deviation of 2 3 5 6?
The standard deviation of 2 3 5 6 = 1.8257
What are the steps involved in management directing?
1. establishment of standard 2. fixation of the standard 3. compairing actual performance with standard performance 4. finding out the deviation 5. correcting the deviation
What is the standard deviation for 3 5 12 3 2?
From the online calculator, see related link, the standard deviation is 4.06202.
What is the standard deviation of 1 3 8?
It is 3.605551275
What are the changes that a sample size can change to standard deviation?
Consider thatxd= x- Arithmetic meand211-1.5 = -0.50.2522-1.5 = 0.50.25=0.5Arithmetic mean = (1+2)/2 =1.5Standard deviation=ie .5= 0.70now Considerxd= x- Arithmetic meand211-2=-1122-2=0033-2=11Arithmetic mean= (1+2+3)/3 = 2 =2Standard deviation= = (2/2) = 1So the Standard deviation can increasenow Considerxd= x- Arithmetic meand211-1.25=-0.250.062522-1.25=0.750.562511-1.25=-0.250.062511-1.25=-0.250.0625Arithmetic mean= (1+2+1+1)/4= 1.25 = .75Standard deviation= = (0.75/4) = 0.4330So the Standard deviation can decreaseStandard deviation can either decrese or increase or remains the same
What is the standard deviation of 2 6 1 4 2 2 4 3 2?
For 2 6 1 4 2 2 4 3 2: σ=1.5366
What is the 68-95-99.7 rule?
The 68-95-99.7 rule, or empirical rule, says this:for a normal distribution almost all values lie within 3 standard deviations of the mean.this means that approximately 68% of the values lie within 1 standard deviation of the mean (or between the mean minus 1 times the standard deviation, and the mean plus 1 times the standard deviation). In statistical notation, this is represented as: μ ± σ.And approximately 95% of the values lie within 2 standard deviations of the mean (or between the mean minus 2 times the standard deviation, and the mean plus 2 times the standard deviation). The statistical notation for this is: μ ± 2σ.Almost all (actually, 99.7%) of the values lie within 3 standard deviations of the mean (or between the mean minus 3 times the standard deviation and the mean plus 3 times the standard deviation). Statisticians use the following notation to represent this: μ ± 3σ.(www.wikipedia.org)
What does it call if you multiplied deviation standard by 2 or by 3?
It is not called anything special, just 2 standard deviations or 3 sd.
How To Calculate Standard Deviation?
You can calculate standard deviation by addin the numbers of data that are together and dividing that number by the amount pieces of data.THAT IS TOTALLY INCORRECT.What was answered above was the calculation for getting an (mean) average.If you take five numbers for example 1, 2, 3, 4, 5 then the (mean) average is 3.But the standard deviation between them is 1.58814 and the variance is 2.5Also the population std. deviation will be 1.41421 and the population variance will be 2.see standard-deviation.appspot.com/
What is the standard deviation 1 4 and 7?
For 1 4 and 7: σ=3
What is 2 6 ( 3 ) ( 5 )?
The standard deviation of 2 3 5 6 = 1.8257
