Ffast as possible, answer quick (no need to show work)

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Is the following is a discrete probability.r distribution. Explain whv or whvr not. O No. the sum of all the probabilities is not equal to 1. O No. not all the probabilities are between D and 1. O No. there is a value of x that is negative. O Yes. since all the probabilities are between D and 1. inclusive and the sum of all the probabilities is one. Is the following is a discrete probability.r distribution. Explain whv or why,r not. 0 Yes. the table lists all possible values of the random variable and their corresponding probabilities. O No. the sum of all the probabilities is not equal to 1. O No. not all probabilities are between D and 1. inclusive. 0 Yes. all probabilities are between [i and 1. inclusive and the sum of all the probabilities is equal to 1. \fUse the following information from Question 3. The university.r library.r records the number of books checked out by each patron over the course of one clay. The results are in the table below, where K is the number of books checked out by a patron of the library. Determine the standard deviation of K. Do not round intermediate computations. Round nal answers to one decimal place. \f