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In: Statistics and Probability

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

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

    House is uniformly distributed between 30 and 40 seconds. Assuming a customer has just

    ordered a whole-milk dry cappuccino,

  1. What is the probability that the preparation time will be more than 30 seconds?
  2. What is the probability that the preparation time will be within 40 seconds?
  3. What is the probability that that the preparation time will be between 30 and 40 seconds?
  4. What is the mean and standard deviation of preparation times for a dry cappuccino using whole milk at the Daily Grind Coffee House?

Hint: The underlined words define the population interval of preparation time.

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