Mr. Dela Cruz can take either two roads to the airport from his home (Road A or Road B). Owing to varying traffic conditions that travel times on two roads are not fixed, rather on a Friday around noon that travel times across these roads can be approximated per normal distribution as follows: Road A: µ= 54 minutes and O = 5 minutes. Road B: μ = 57 minutes and O = 10 minutes. Which road should he choose if on Friday noon he must be at the airport within 50 minutes to pick up his wife?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Mr. Dela Cruz can take either two roads to the airport
from his home (Road A or Road B). Owing to varying
traffic conditions that travel times on two roads are not
fixed, rather on a Friday around noon that travel times
across these roads can be approximated per normal
distribution as follows:
Road A: μ= 54 minutes and O = 5 minutes.
Road B: μ = 57 minutes and O = 10 minutes.
Which road should he choose if on Friday noon he
must be at the airport within 50 minutes to pick up his
wife?
Transcribed Image Text:Mr. Dela Cruz can take either two roads to the airport from his home (Road A or Road B). Owing to varying traffic conditions that travel times on two roads are not fixed, rather on a Friday around noon that travel times across these roads can be approximated per normal distribution as follows: Road A: μ= 54 minutes and O = 5 minutes. Road B: μ = 57 minutes and O = 10 minutes. Which road should he choose if on Friday noon he must be at the airport within 50 minutes to pick up his wife?
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