Determining the sum of squares, variance, standard deviation
Please help me calculate the ss, variance and standard deviation for this.
n=4 scores are 7, 4, 2, 1
(do i figure the mean here 1st? 3.5?)
ss____
variance____
standard deviation____
n=4 scores are 7, 4, 2, 1
(do i figure the mean here 1st? 3.5?)
ss____
variance____
standard deviation____
Also if a population has a mean of 80 and standard deviation of 20 would the score of x=70 be considered extreme in the sample?
If the standard were 5 would a score of x=70 be considered extreme?
If the standard were 5 would a score of x=70 be considered extreme?
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