College students are randomly selected and arranged in groups of three. The random variable x is the number in the group who say that they take one or more online courses. Determine whether a probability distribution is given. If a probability distribution is given, nd its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satised. Does the table show a probability distribution? Select all that apply. MIA. Yes, the table shows a probability distribution. ' B. No, the sum of all the probabilities is not equal to 1. '. C. No, the numerical values of the random variable x are not associated with probabilities. '. D. No, not every probabiiity is between D and 'i inclusive. J E. No, the random variable x is categon'cal 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. 63 A- 512 students (Round to one decimal place as needed.) O B. The table does not show a probability distribution