What type of distribution pattern is exhibited by the daily returns of a stock or index?

What statistical concept is used to quantify the dispersion or spread of data in a normal distribution?

What percentage of data points in a normal distribution fall within one standard deviation from the mean?

What is the term used to describe events that have a low probability of occurrence but can still happen, often falling outside the three standard deviation range in a normal distribution?

What is the key characteristic of a 'random walk' in the context of stock market returns?