1) In the year 2033, Manal Elouthmani is a leading nurse practitioner. Manal is presently researching the number of patients treated per hour. Manal develops the following probability distribution. Number of patients treated per hour 3 6 10 12 Probability 0.4 0.3 0.2 0.1 a) What shape is the above probability distribution (symmetric, positively skewed, negatively skewed)? b) What is the standard deviation for the number of patients treated per hour? c) What is the mean (expected value) for the number of patients treated per hour?

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