Standard Deviation is not affected by the sample size whereas the Confidence Interval is.
These thoughts were extracted from Udacity online course and cover topics such as: Visualizing relationships in data, Probability, Estimation, Outliers and Normal Distribution, Inference and Regression.
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The standard score is the signed number of standard deviations by which the value of an observation or data point is above the mean value of what is being observed or measured. Observed values above the mean have positive standard scores, while values below the mean have negative standard scores. z = (x - μ)/σ
Every small business will give you an entrepreneurial way of looking at things. I guarantee you that for every plant that closes, if you gave it to one small-business person in that community, he or she would find a way to make it work. The small-business attitude is you always find a way to make it work.
Republicans rarely criticize Obama for lack of empathy - in part because liberals have traditionally been seen as standing up for the weak and the vulnerable. Conservatives can be just as empathetic. But they believe that, in most cases, it's not government's role to be the primary dispenser of empathy.