User StubbornAtom - Cross Validated Meta

StubbornAtom

Member for 7 years, 6 months
Last seen this week

Kolkata, India

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Apr 14, 2018
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Oct 26, 2016

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33

What is the most rigorous definition of a matrix?

26

When not to treat dy/dx as a fraction in single-variable calculus?

19

Distribution of $\frac{\sum_{i=1}^n X_iY_i}{\sum_{i=1}^n X_i^2}$ where $X_i,Y_i$s are i.i.d Normal variables

16

Convergence of Student's t-distribution to a standard normal

15

Find expectation of $\frac{X_1 + \cdots + X_m}{X_1 + \cdots + X_n}$ when $X_1,\ldots,X_n$ are i.i.d