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In what year was the solar roadways test completed in the Idaho parking lot?

What purpose do the proposed temperature-sensitive signs serve in smart road design?

Which country is developing solar roads?

Which city had the worst traffic congestion, with drivers spending up to 167 hours per year stuck in traffic?

The number of calls a customer service department of an airline company receives during one business hour.

The number of times you should call to order a pizza delivery until someone picks up the phone on the Super Bowl night.

A pop-up coffee stand charges $3 per cup of coffee they sell.  The daily demand (in number of cups sold) has mean 200 and standard deviation of 20. The cost of daily operation is $200. Compute the following. mean of the daily profit = [a] standard deviation of the daily profit = [b] 

Suppose Cov(X,Y) = -1. Find the variance of 2X – Y + 2.

[Q6 – Q10] Choose the distribution best models each of the following statistical phenomena.

What is the probability a patient answers that her pain is not reduced after the drug test? Provide four digits after the decimal point.