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4. The time required to prepare a dry cappuccino using whole milk at the Daily Grind...

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Statistics

4. The time required to prepare a dry cappuccino using wholemilk at the Daily Grind Coffee

    House is uniformly distributedbetween 30 and 40 seconds. Assuming a customer hasjust

    ordered a whole-milk dry cappuccino,

  1. What is the probability that the preparation time will be morethan 30 seconds?
  2. What is the probability that the preparation time will bewithin 40 seconds?
  3. What is the probability that that the preparation time will bebetween 30 and 40 seconds?
  4. What is the mean and standard deviation of preparation timesfor a dry cappuccino using whole milk at the Daily Grind CoffeeHouse?

Hint: The underlined words definethe population interval of preparation time.

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