What percentage of data falls within one standard deviation of the mean in a normal distribution?

68% 95% 99.7% 50%

What statistical measure helps quantify the amount of variation or dispersion in a dataset?

Mean Median Mode Standard Deviation

What is the purpose of constructing a standard deviation table in pair trading?

To calculate the average price of a stock To determine the correlation between two stocks To quantify the extent of variation from the mean value To predict future stock prices

Which of the following is NOT a descriptive statistic?

Mean Median Correlation Mode

According to the text, what plays a crucial role in pair trading?

Uniform distribution Binomial distribution Exponential distribution Normal distribution