ABC is a car dealership. Over the past 300 days, the showroom experienced 54 days with no automobile sales, 117 days with one automobile sale, 72 days with 2 automobiles sales, 42 days with 3 automobile sales, 12 days with 4 automobile sales, and 3 days with 5 automobile sales
a. Define the random variable
b. Calculate the expected value of random variable
c. Calculate Variance
d. Calculate Standard Deviation
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