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Please help will rate! The probability model below describes the number of repair calls that an appliance repair shop may receive during an hour. Complete

Please help will rate!

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The probability model below describes the number of repair calls that an appliance repair shop may receive during an hour. Complete parts a and b below. 4 =1 Repair Calls Probability _; - M LAD a) How many calls should the shop expect per hour? The shop should expect calls per hour. (Type an integer or a decimal. Do not round.) b) What is the standard deviation? The standard deviation is . (Round to two decimal places as needed.)

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