The time required to prepare a certain specialty coffee at a local coffee shop is uniformly distributed between 30 and 50 seconds. Assuming a customer just ordered one of these specialty​ coffees, determine the probabilities described below.   a. What is the probability that the preparation time will be more than 33 ​seconds? b. What is the probability that the preparation time will be between 39 and 46 ​seconds? c. What percentage of these specialty coffees will be prepared within 43 ​seconds? d. What is the standard deviation of preparation times for this specialty coffee at this​ shop?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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The time required to prepare a certain specialty coffee at a local coffee shop is uniformly distributed between
30
and
50
seconds. Assuming a customer just ordered one of these specialty​ coffees, determine the probabilities described below.
 
a. What is the probability that the preparation time will be more than
33
​seconds?
b. What is the probability that the preparation time will be between
39
and
46
​seconds?
c. What percentage of these specialty coffees will be prepared within
43
​seconds?
d. What is the standard deviation of preparation times for this specialty coffee at this​ shop?
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