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The drive-thru times at Tim Horton’s are normally distributed with µ = 138.5 seconds and σ...

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Basic Math

The drive-thru times at Tim Horton’s are normally distributedwith µ = 138.5 seconds and σ = 29 seconds.

(a) What is the probability that a randomly selected car willget through the drive-thru in less than 100 seconds?

(b) What is the probability that a randomly selected car willspend more than 160 seconds in the drive-thru?

(c) What proportion of cars spend between 2 and 3 minutes in thedrive-thru?

(d) Would it be unusual for a car to spend more than 3 minutesin the drive-thru? Why?

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According to the given question the drivethru times at TimHortons are normally distributed with meanseconds and standard deviationsecondsa The probability thata randomly selected car will get through the drivethru in lessthan    See Answer
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