Calculate SS variance and standard deviation for the sample

Calculate SS, variance, and standard deviation for the sample n = 4 scores. (Round your answers to two decimal places where needed.)

Calculate SS, variance, and standard deviation for the following sample of n = 4 scores. (Round your answers to two decimal places where needed.) 7,4, 2,1 (Note: The computational formula for SS works well with these scores.) Variance: Standard deviation:

Solution

To calculate SS, first find the mean of the given numbers

Then calculate the square of the difference between the number and the mean

Sum this value for all the numbers to obtain SS

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