You own a fast food shop, which also has a drive-thru window. Every day when you open the shop, you will wait on average for 30 minutes before the first customer walks in, and on average 15 minutes before the first vehicle comes to the drive-thru. Suppose both waiting times follow exponential distributions and they are independent. In the following questions, if you are using normal approximations, leave your final answer in terms of the standard normal CDF Φ. (a) What is the average waiting time for your first customer of the day (either walk-in or drive-thru)?
(b) When the waiting time for the first customer exceeds 20 minutes, you call it a bad day. Approximate the probability that you will have more than 60 bad days in a year of 365 days. Justify your use of this approximation.
(c) When the waiting time for the first customer is shorter than 3 seconds (i. e., 0.05 minutes), it is a great day. Approximate the probability that you will have exactly 3 great days in a year.

How is the architecture career pathway different from the construction pathway? a. architecture involves coordinating with contractors to make sure everyone stays on schedule. b. architecture involves using tools and equipment to build something new. c. architecture involves the design process, considering the function and safety of the project. d. architecture involves evaluating the work of contractors and employees.

Label each scenario with the term that best describes it. use the midpoint method when applicable. marcel duchamp was a famous artist prior to his death, and was known for his dada artwork, including works such as "soft toilet". all of his original sculptures and paintings go on sale. paul owns a tim horton's, a famous donut and coffee franchise. he is willing to sell as many maple glazed donuts as customers want at a price of $1.00 each, but he refuses to sell any donuts for any price lower than $1.00 . the price of facial tissues rises from $2.85 per box to $3.15 . as a result, p& g increases production from 15 million boxes to 25 million boxes of facial tissue. with the school semester starting for both high school and college, papermate chooses to increase production of pens from 38 million to 42 million after global prices of writing instruments increase from $1.90 a package to $2.10 a package. bright ideas increases its production of lightbulbs by 15% after a 400% increase in the price of fluorescent bulbs.labels: elastic supply; perfectly inelastic supply; perfectly elastic supply; inelastic supply; unit-elastic supply.

Awell-written business plan can improve your chances of getting funding and give you more free time. improved logistics. greater negotiating power.