The expected value of a randomvariableis themeanvalue, option b is correct.The expected value is a fundamental concept inprobabilitytheory and statistics, and it is used to make predictions about the behavior of random variables. It provides important information about the distribution of a randomvariable, such as its variance and standard deviation. The expected value can also be used to estimate the probability of events occurring in the future, based on past observations.The expected value of a random variable is themeanvalue, which represents the theoretical average of all possible outcomes weighted by their respective probabilities. It is a fundamental concept in probability theory andstatistics, and it provides important information about the behavior of random variables,  option b is correct.To learn more aboutvariablefollow the link:brainly.com/question/29583350#SPJ4...

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