ACTIVITY 1: PRACTICE Directions: Examine each histogram, then answer the following questions. a. Does the graph represent a probability distribution? Explain your answer. b. Estimate the mean. Explain your answer. c. Compute the actual mean. d. Tell whether the distribution has a small or large variance. Explain your answer e. Compute the actual variance and standard deviation. 1. Histogram 0,5 0,4 0,3 0,2 0,1 98 99 100 101 102 X- discrete random variable

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