Groups of adults are randomly selected and arranged in groups of three. X P(x) 2 The random variable x is the number in the group who say that they 0 0.363 would feel comfortable in a self-driving vehicle. Determine whether a 1 0.441 probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, 2 0. 173 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, the sum of all the probabilities is not equal to 1, C. No, the random variable x's number values are not associated with probabilities. [)D. No, the random variable x is categorical instead of numerical E. No, not every probability is between 0 and 1 inclusive 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. = 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.) O B. The table does not show a probability distribution