Silverfish

 17 Is there a relationship between trigonometric functions and their “co” functions? 11 How to Prove that the minimum of two exponential random variables is another 11 What will be the value of the following determinant without expanding it? 7 How to calculate the probability of a normal distribution with unknown mean and unknown variance? 4 Why are the order-of-operations conventions good?

### Reputation (1,047)

 +110 How to Prove that the minimum of two exponential random variables is another +2 Determinant of a matrix of the form $M = I + xx^t$ +10 How to calculate the probability of a normal distribution with unknown mean and unknown variance? +2 An elementary proof for a series involving logarithm

### Questions (3)

 3 Construct an equilateral triangle with area equal to a given triangle 2 What is the term for a function whose output is greater than its input, f(x) > x? 2 A circle can include all but one of n points, but which one can it be?

### Tags (41)

 17 terminology × 2 11 statistics × 3 17 trigonometry 11 linear-algebra × 2 16 probability-distributions × 3 11 random-variables 13 calculus × 4 10 integration × 3 13 determinant × 2 9 normal-distribution × 2

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