What does it imply for standard deviation being more than twice the mean? Our data is timing data from event durations and so strictly positive. (Sometimes very small negatives show up …

The mean of 0 and standard deviation of 1 usually applies to the standard normal distribution, often called the bell curve. The most likely value is the mean and it falls off as you get farther …

The mean of the sample means will approximate the population mean. Now what I don't understand is a lot of the times you see "A sample of 100 people…" Wouldn't we need 10s or …

Ok, so the question should technically be "how does the expected value relate to the mean, median etc. of data drawn randomly from a particular probability distribution?" I'm looking for …

So we have arithmetic mean (AM), geometric mean (GM) and harmonic mean (HM). Their mathematical formulation is also well known along with their associated stereotypical …

The mean you described (the arithmetic mean) is what people typically mean when they say mean and, yes, that is the same as average. The only ambiguity that can occur is when …

It demonstrates the Central Limit Theorem, i.e. how the sampling distribution of the mean tends to the normal, even for values following a very "unnormal" distribution.

N = 259 Mean = 72 StdDev = 7 I don't remember anything about this, and my career doesn't deal with any of this. I want to know how can I interpret these results with those values. What does …

Jan 13, 2014 · After calculating the "sum of absolute deviations" or the "square root of the sum of squared deviations", you average them to get the "mean deviation" and the "standard …

What will be the mean no. of days a student was absent? I am unable to understand since the class sizes are different. Update In both the first 2 answers, the authors have assumed …