Probability Scores 0.25 0 0.01 1 0.16 2 0.01 6 0.06 8 0.06 11 0.45 12 Find the expected value of the above random variable.
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- The probability distribution of the random variable X represents the number of hits a baseball player obtained in a game for the 2012 baseball season. 1 2 3 4 P(x) 0.1666 0.3437 0.2774 0.1486 0.0384 0.0253ols A census collected data on everyone that lived in a certain small town. The random variable X is the number of girls born to a randomly selected couple in that town who has four children. Its probability distribution is shown below. Complete parts a through c. 0 0 1 0.2447 2 0.3208 3 0.2415 4 0.1073 P(X=x) 0.0857 ... a. Find and interpret the mean of the random variable. =(Round to four decimal places as needed.) View an example Help me solve this Get more help. F5 A MacBook Air F6 F7 DII Clear all FB F9 I Check answer F10 F11Find the expected value of the random variable. 3 4 5 0 P(x) 0.2 0.3 0.4 0.1 2.
- Suppose the number of rides that a visitor enjoys at Disney Find the mean number of rides for a Disney World visitor. World during a day is a random variable with the (Use decimal notation. Give your answer to two probability distribution given in the table. decimal places.) 5 6 7 8 9 10 11 12 p(x)0.040.07 0.09 0.120.200.300.130.05Probability Scores 0.15 0.3 5 0.35 8 0.15 10 0.05 11 Find the expected value of the above random variable. Enter a mathematical expression [more..] Question Help: M Message instructor Submit QuestionThe random variable X is the crew size of a randomly selected shuttle mission. Its probability distribution is shown below. Complete parts a through c. 2 5 6 7 8 D 4 0.045 0.306 P(X=x) 0.025 0.187 0.431 0.006 ... a. Find and interpret the mean of the random variable. μ= 5.947 (Round to three decimal places as needed.) Interpret the mean. Select the correct choice below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. The average number of persons in a shuttle crew is 5.947 person(s). OB. The most common number of persons in a shuttle crew is person(s). b. Obtain the standard deviation of the random variable. O (Round to three decimal places as needed.) Check answer Help me solve this View an example Get more help. 30 20 F10 F4 MacBook Air F6 DII FB Clear all DD F9
- (a) Find P(2X + Y < 12).(b) Are X and Y dependent or independent (justify your answer).If z is a standard normal random variable, find the probability.The probability that z lies above 1.12Find the expected value for the random variable whose probability function graph is displayed here AP 0.5- 0.4- 0.3- 0.2- 0.1- 0- 1 2 34 5
- If the probability distribution for the random variable X is given in the table, what is the expected value of X? xi -2 pi .3 1 6 .5 .2 Question content area bottom Part 1 E(X)=enter your response ereProbability scores 0.2 2 0.05 7 0.2 8 0.2 13 0.35 14 Find the expected value of the above random variable.Probability Scores 0.1 0 0.1 1 0.05 3 0.1 7 0.25 8 0.15 11 0.25 14 Find the expected value of the above random variable.
