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MA120 Basic Concepts of Statistics - Spring 1 2022 Test: Final Exam v Question 10 of 25 Groups of adults are randomly selected and arranged in groups of three. P ( x ) 5 The random variable x is the number in the group who say that they O 0.358 would feel comfortable in a self-driving vehicle. Determine whether a 0.431 probability distribution is given, If a probability distribution is given, find its N mean and standard deviation. If a probability distribution is not given, 0.188 identify the requirements that are not satisfied, 3 0.023 Does the table show a probability distribution? Select all that apply.A. Yes, the table shows a probability distribution. B. No, not every probability is between 0 and 1 inclusive,C. No, the random variable x is categorical instead of numerical. D. No, the sum of all the probabilities is not equal to 1. E. No, the random variable x's number values are not associated with, probabilities. Find the mean of the random variable x. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. H= adult(s) (Round to one decimal place as needed.) O B. The table does not show a probability distribution, Find the standard deviation of the random variable x, Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. = adult(s) (Round to one decimal place as needed,) B. The table does not show a probability distribution