Web8 hours ago · A population has a mean of 75 and a standard deviation of 8. A random sample of 800 is selected. The expected value of x is. weegy; Answer; Search; More; … WebGiven the following discrete uniform probability distribution, find the expected value and standard deviation of the random variable. Round your final answer to three decimal places, if necessary, x Probability Distribution 0 1 2 3 4 5 1111111 x) = 6 6 6 6 6 6 P (X = Answer Tables Keypad Expected Value: Standard Deviation:
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WebThe expected value is simply a way to describe the average of a discrete set of variables based on their associated probabilities. This is also known as a probability-weighted average. For this example, it would be estimated that you would work out 2.1 times in a week, 21 times in 10 weeks, 210 times in 100 weeks, etc. ( 5 votes) sherrybop WebExpected values are used to decide on strategies in gambling games, determine whether or not a game is fair, test statistical hypotheses, and calculate insurance premiums. It is best to assume that the math skills that you learn will be used at some … hang a mirror on the wall
Expected Value Definition, Formula, and Examples
WebThis problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Given the following discrete uniform probability distribution, find the expected … WebCalculate the expected value, the variance, and the standard deviation of the given random variable X. (Round all answers to two decimal places.) X is the number of red marbles that Suzan has in her hand after she selects five marbles from a bag containing five red marbles and two green ones. expected value. variance. standard WebSep 17, 2024 · The empirical rule. The standard deviation and the mean together can tell you where most of the values in your frequency distribution lie if they follow a normal … hang analyzer oracle