Howtosignalprocessing
- How do you find the expectation of a vector?
- How do you calculate expectation value?
- How do you find expected XY?
- How do you find the expectation of an event?
How do you find the expectation of a vector?
The expected value vector or the mean vector of the random vector X is defined as EX=[EX1EX2...EXn]. Similarly, a random matrix is a matrix whose elements are random variables.
How do you calculate expectation value?
To find the expected value, E(X), or mean μ of a discrete random variable X, simply multiply each value of the random variable by its probability and add the products. The formula is given as E ( X ) = μ = ∑ x P ( x ) .
How do you find expected XY?
Theorem 3. To obtain E(XY), in each cell of the joint probability distribution table, we multiply each joint probability by its corresponding X and Y values: E(XY) = x1y1p(x1,y1) + x1y2p(x1,y2) + x2y1p(x2,y1) + x2y2p(x2,y2).
How do you find the expectation of an event?
E(X)= Σ (x1p1, x2p2, …, xnpn), where, x is a random variable with the probability function, f(x), p is the probability of the occurrence, and n is the number of all possible values.
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