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64. The weight of an object is an example of a. a continuous random variable b. a discrete random variable C. either a continuous or a discrete random variable, depending on the weight of the object d. either a continuous or a discrete random variable depending on the units of measurement 65. The Poisson probability distribution is a a. continuous probability distribution b. discrete probability distribution C. uniform probability distribution d. normal probability distribution 66. The binomial probability distribution is used with a. a continuous random variable b. a discrete random variable C. any distribution, as long as it is not normal d. None of these alternatives is correct. 67. Which of the following is not a characteristic of an experiment where the binomial probability distribution is applicable? a. the experiment has a sequence of n identical trials b . exactly two outcomes are possible on each trial C. the trials are dependent d. the probabilities of the outcomes do not change from one trial to another 68. The standard deviation of a binomial distribution is a. o(x) = P(1 - P) b. o(x) = nP C. o(x) = nP(1 - P) d. None of these alternatives is correct