Why average incoming spins and sum over outgoing spins?
120820
Why, in spin sums, we sum over final spin states and average over initial states?
89491
Is there a simple reason why the expected number of coin flips till getting $m$ more heads than tails or $n$ more tails than heads should be $mn$?
84169
What is the terminology for data aggregated via summed totals versus data aggregated via means?
122469
When combining p-values, why not just averaging?
76003
Sudden increase in timing when summing over 250 entries
18975
How to 'sum' a standard deviation?
135727
Error Measures, why is the sum halved? why not use the absolute value?
81480
What is wrong with this deduction to show that within a multiplet different state has different square angular momentum?
79754
Why only 1 component of angular momentum?
37358
Spin, orbital angular momentum and total angular momentum
93714
Why do we not have spin greater than 2?
105755
Can anyone clarify the concept of a "sum of random variables"
12548
Why are MA(q) time series models called "moving averages"?
126763
Why exactly is the observed Fisher information used?
65759
A possible incorrect application of Law of Large numbers
66043
How does load average work with modern CPU's?
59364
Why should the data be shuffled for machine learning tasks