Mathematics, 05.05.2020 08:11 aide1234564
The speed limit on the freeway is 65 mph. The chief of the police department has their radar guns tested: from repeated measurements, the errors in the readings seem to follow a normal distribution. Using the data and assuming the radar guns provide unbiased measurements of the true speeds, the chief issues a policy that officers should not stop cars unless the reading is at least 71 mph. She says this policy ensures that no more than 2.5% of cars driving at the speed limit will be pulled over for speeding.
(a) What is the SD of the radar gun readings?
(b) Under the chief’s assumptions, what percentage of cars whose actual speed is 68 mph will be pulled over?
Answers: 1
Mathematics, 21.06.2019 17:30
Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?
Answers: 1
Mathematics, 21.06.2019 23:20
Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?
Answers: 1
Mathematics, 22.06.2019 00:00
David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?
Answers: 1
Mathematics, 22.06.2019 03:00
Luigi is the first person to finish a 5k race and is standing 13 feet beyond the finish line. another runner, mario, is still running the race and has approximately 24 feet before he reaches the finish line. what is the distance between mario and luigi? explain through words, numbers or pictures how you found the answer.
Answers: 1
The speed limit on the freeway is 65 mph. The chief of the police department has their radar guns te...
Mathematics, 19.08.2019 01:10
History, 19.08.2019 01:10
Mathematics, 19.08.2019 01:10
Mathematics, 19.08.2019 01:10
Mathematics, 19.08.2019 01:10
Physics, 19.08.2019 01:10
Mathematics, 19.08.2019 01:10
History, 19.08.2019 01:10
Geography, 19.08.2019 01:10
English, 19.08.2019 01:10
Mathematics, 19.08.2019 01:10
Mathematics, 19.08.2019 01:10
Mathematics, 19.08.2019 01:10