standard deviation tells you, on average, how far each value within your dataset lies from the mean. A high standard deviation means that the values within a dataset are generally positioned far away from the mean, while a low standard
I just looked up the standard deviation formula. I makes quite sense to me because we're actually trying to 'measure' how much all the observations deviate from the mean value. To do this, we calculate all the possible differences, [X(mean) - x(i)], then we square all the differences...
Have any explanations been found for why the anomaly exists or does it weaken the efficient market hypothesis? For the following distributions, state whether you would use the mean or the median to represent the central tendency of the distribution. Explain why. a. 2, 3, 8, 5, 7, 8 b....
Question: If all the data values in a set are identical, what can you conclude about the standard deviation? Standard Deviation Standard deviation is a very important statistic. This can give us information about how the values move around the mean. The more the move...
The finding of high variability of different leadership behaviors within one leader across one week contrasts more traditional perspectives on leadership. These perspectives assume that leadership behaviors represent leaders' stable behavioral tendencies over time that are driven by stable leader characteristics...
2 Novy - Marx, Robert, “The Other Side of Value: The Gross Profitability Premium” Journal of Financial Economics, 108(1), 1 - 28, 2013. 3 Narasimhan Jegadeesh and Sheridan Titman, “Returns to Buying Winners and Selling Losers: Implications for Stock Market Efficiency”, Journal of Finance...
The term "sigma" comes from the Greek letter sigma. It is used in statistics to represent standard deviation, which means that these men are statistically different from other men in society. The sigma male personality has been around for a long time and was originally coined by Robert Bly ...
What does market equilibrium mean? How to calculate this equation: 1/0.12 - 1/0.12(1 + 0.12)8? In what circumstances would the yield curve slope downward? If the present value of $139 is $125, what is the discount factor? What does accumulated depreciation represent?
of the eigenvectors; these denote the importance of this directional data. Therefore, a high eigenvalue means that the corresponding eigenvector is more critical. Since principal components represent the directions of maximum variance in the data, they are also the eigenvectors of the covariance ...
risk-free rate. When the risk-free rate increases, the present value of future cash flows decreases, leading to a decline in bond prices and an increase in bond yields. The opposite is true when the risk-free rate decreases (the PV of cash flow goes up and so does the bond’s price...