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,
- What is the probability that the preparation time will be morethan 30 seconds?
- What is the probability that the preparation time will bewithin 40 seconds?
- What is the probability that that the preparation time will bebetween 30 and 40 seconds?
- 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.
