
What does E mean in 9.0122222900391E-5? [closed]
I often find this at the bottom of pages. Page generated in 0.00013899803161621 Sometimes, I come across Page generated in 9.0122222900391E-5 What does that time mean? I tried …
calculator - how do you define the decimals indicator: E-3 ...
2011年6月13日 · Sorry for the terrible question, but how do you define E-3, which is used in the calculators to indicate that the first 3 decimals in the number are not displayed ? 0.000563 = …
What does 3.199E +01 mean? - Mathematics Stack Exchange
2020年3月12日 · What is the exact value of 3.199 E +01 ? Does it mean $3.199\\times10^1$?? I get confused with the notation.
How to arrange $e^3,3^e,e^{\\pi},\\pi^e,3^{\\pi},\\pi^3$ in the ...
For these six numbers, e3,3e,eπ,πe,3π,π3 e 3, 3 e, e π, π e, 3 π, π 3, how to arrange them in the increasing order? This problem is taken from the today test: National Higher Education …
Why is the expected value $E(X^2) \\neq E(X)^2$?
If two random variables X, Y X, Y are independent, then it is indeed true that E(XY) =E(X)E(Y) E (X Y) = E (X) E (Y). But X X is as far as possible from being independent of itself!
Intuition why the derivative of - Mathematics Stack Exchange
2020年1月16日 · Is there an intuitive reason why the constant e e to the power of x x has a derivative that equals the value of the function? I know that this is the result of differentiating, …
Check if Sequence is Graphic: 8, 8, 7, 7, 6, 6, 4, 3, 2, 1, 1, 1
This is part of my Discrete Math homework and I have no idea how to solve this. I am given this sequence: 8, 8, 7, 7, 6, 6, 4, 3, 2, 1, 1, 1 8, 8, 7, 7, 6, 6, 4, 3, 2, 1, 1, 1 I have to check whether …
why is $E[E[Y|X]] = E[Y]$ - Mathematics Stack Exchange
A random variable h(Y):=E[X|Y] h (Y):= E [X | Y] is the best (in a certain sense) approximation of X X by random variables of the form g(Y) g (Y) where g g is any "nice" (=measurable) function. …
Expected value of an expected value - Mathematics Stack Exchange
There are some things you can cancel in yours. )2)2) 2) 2, since the expected value of an expected value is just that. It stops being random once you take one expected value, so …
Exponential decay and time constants - Mathematics Stack Exchange
The time constant τ is the amount of time that an exponentially decaying quantity takes to decay by a factor of 1/e. Because 1/e is approximately 0.368, τ is the amount of time that the quantity …