The probability function for random variable X is specified as: The expected value of X is
A) 0.333
B) 0.500
C) 2.000
D) 2.333

Question

Quizplus · Accepted Answer

The expected value (mean) of a random variable X, denoted as E(X), is calculated by summing the products of each possible value of X and its corresponding probability. Without the specific probability function provided, we can't perform the exact calculation here. However, the correct answer to a question like this typically involves applying the formula for expected value: E(X) = Σ [x * P(x)], where x ranges over all possible values of X, and P(x) is the probability of x. The answer provided (2.333) suggests a specific set of probabilities and values that, when applied to this formula, would result in 2.333.

The Probability Function for Random Variable X Is Specified As