Practice problem
The formula for standard deviation is: σ=∑(x−xˉ)2n\sigma = \sqrt{\dfrac{\sum{(x-\bar{x})^{2}}}{n}}σ=n∑(x−xˉ)2
What does nnn represent?
A) The mean of the data set.
B) The variance
C) An individual value of the data set.
D) The number of values in the set.
Type a concept, like “slope” or “photosynthesis”.
