A local appliance store recorded the number or refrigerators sold each day over a 200 day...
A local appliance store recorded the number or refrigerators sold each day over a 200 day span. The results are as follows:
Number of refrigerators sold: (x) 0 1 2 3 4 Frequency: (f) 20 40 60 40 40 P(x):
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a.) Use the relative frequency to fill in the blanks for P(x)
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b.) What is the probability that on a random day, at least 2 refrigerators are sold?
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c.) What is the expected value (mean) for the number of refrigerators sold on a random
day? What is the standard deviation?
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