Refer to the values descn'bed below, then identify which of the following is most appropriate: discrete random variable, continuous random variable, or not a random variable. a. Responses to the survey question "How many pets do you have?" b. Exact foot length of human infants c. Exact lengths of the next Sill] kittens born in a region d. Number of children living in households e . Responses to the survey question "Are you married?" a. Since the outcomes are l countable, this is a discrete random variable. b. Since the outcomes are not countable, this is a continuous random variable. not countable, this is a continuous random van'able. c. Since the outcomes are d. Since the outcomes are countable, this is a continuousl random variable. e. Since the outcomes are not numerical, this is not a random variable