Groups of adults are randomly selected and arranged in groups of three. x P(x) D- The random variable x is the number in the group who say that they 0 W would feel comfortable in a self-driving vehicle. Determine whether a 1 0 444 probability distribution is given. If a probability distribution is given, nd its ' mean and standard deviation. If a probability distribution is not given, i identify the requirements that are not satised. 3 0-025 Does the table show a probability distribution? Select all that apply. E] A. Yes, the table shows a probability distribution. E] B. No, not every probability is between 0 and 1 inclusive. E] C. No, the random variable x's number values are not associated with probabilities. E] D. No, the sum of all the probabilities is not equal to 1. E] E. No, the random variable x is categorical instead of numerical. Find the mean of the random variable x. Select the correct choice below and. if necessary, ll in the answer box to complete your choice. 0 A- p = D adult(s) (Round to one decimal place as needed.) 0 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, ll in the answer box to complete your choice. 0 A- 5 = D adult(s) (Round to one decimal place as needed.) 0 B. The table does not show a probability distribution