The range to an electric car is the amount kilometers the car can drive when the battery is full until it is empty. Anna owns an electric car which has a range that is normal distributed with expected 305 km, and standard deviation 23 km. Anna always starts a car ride with a full battery. a) i: Anna drives from point A to point C, a distance 301 km. What is the probability that she has enough range to drive the distance without charging during the trip? ii: What is the probability for Anne to run out of battery during between point A to point B her trip to point C? The distance between point A and point B is 281 km. iii: At another trip Anne is going to drive from point A to point D. She plans to stop and charge the battery at point B (after 281 km), and from there drive all the way to point D without stop. The distance from point B to point D is 276 km. What is the probability for that she can complete the trip as planned without running out of battery between Point A and point B, or point B and point D. Assume that the two distances are independent.

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The range to an electric car is the amount kilometers the car can drive when the battery is full until
it is empty. Anna owns an electric car which has a range that is normal distributed with expected
305 km, and standard deviation 23 km. Anna always starts a car ride with a full battery.
a) i: Anna drives from point A to point C, a distance 301 km. What is the probability that she has
enough range to drive the distance without charging during the trip?
ii: What is the probability for Anne to run out of battery during between point A to point B her
trip to point C? The distance between point A and point B is 281 km.
iii: At another trip Anne is going to drive from point A to point D. She plans to stop and charge
the battery at point B (after 281 km), and from there drive all the way to point D without stop.
The distance from point B to point D is 276 km. What is the probability for that she can complete
the trip as planned without running out of battery between Point A and point B, or point B and
point D. Assume that the two distances are independent.
Transcribed Image Text:The range to an electric car is the amount kilometers the car can drive when the battery is full until it is empty. Anna owns an electric car which has a range that is normal distributed with expected 305 km, and standard deviation 23 km. Anna always starts a car ride with a full battery. a) i: Anna drives from point A to point C, a distance 301 km. What is the probability that she has enough range to drive the distance without charging during the trip? ii: What is the probability for Anne to run out of battery during between point A to point B her trip to point C? The distance between point A and point B is 281 km. iii: At another trip Anne is going to drive from point A to point D. She plans to stop and charge the battery at point B (after 281 km), and from there drive all the way to point D without stop. The distance from point B to point D is 276 km. What is the probability for that she can complete the trip as planned without running out of battery between Point A and point B, or point B and point D. Assume that the two distances are independent.
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