On a stretch of Interstate-89, car speed is a normally distributed variable with a mean of...
On a stretch of Interstate-89, car speed is a normally distributed variable with a mean of 69.3 mph and a standard deviation of 3.7 mph. Suppose you are a police officer on this stretch of road and only have time to ticket 2% of the cars that go by you. How fast should someone be traveling before you pull them over? Round your answer to 1 decimal place. mph
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On a stretch of Interstate-89, car speed is a normally
distributed variable with a mean of...
On a stretch of Interstate-89, car speed is a normally distributed variable with a mean of...
On a stretch of Interstate-89, car speed is a normally distributed variable with a mean of 68.1 mph and a standard deviation of 3.5 mph. You are traveling at 72 mph. Approximately what percentage of cars are traveling faster than you? Enter your answer as a percentage with 1 decimal place. ____ %
Speeding: On a stretch of Interstate-89, car speed is a normally distributed variable with a mean...
Speeding: On a stretch of Interstate-89, car speed is a normally distributed variable with a mean of 68.9 mph and a standard deviation of 3.5 mph. You are traveling at 75 mph. Approximately what percentage of cars are traveling faster than you? Enter your answer as a percentage with 1 decimal place. %
Speeding: On a stretch of Interstate-89, car speed is a normally distributed variable with a mean...
Speeding: On a stretch of Interstate-89, car speed is a normally distributed variable with a mean of 68.9 mph and a standard deviation of 4.1 mph. You are traveling at 75 mph. Approximately what percentage of cars are traveling faster than you? Enter your answer as a percentage with 1 decimal place. %
Suppose that the speed at which cars go on the freeway is normally distributed with mean...
Suppose that the speed at which cars go on the freeway is normally distributed with mean 73 mph and standard deviation 8 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-N b. If one car is randomly chosen, find the probability that it is traveling more than 72 mph. c. If one of the cars is randomly chosen, find...
Suppose that the speed at which cars go on the freeway is normally distributed with mean...
Suppose that the speed at which cars go on the freeway is normally distributed with mean 68 mph and standard deviation 6 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(_____,______) b. If one car is randomly chosen, find the probability that it is traveling more than 69 mph. ________ c. If one of the cars is...
Suppose the speeds of cars along a stretch of I-40 is normally distributed with a mean...
Suppose the speeds of cars along a stretch of I-40 is normally distributed with a mean of 70 mph and standard deviation of 8 mph. What would be the speed for a car whose z-score is z=−1.6? f a car is chosen at random on this stretch of highway, what is the probability it will be travelling at a speed below 70 mph? If a car is chosen at random on this stretch of highway, what is the probability it...
5) 1. The speeds on a stretch of highway are normally distributed with a mean of...
5) 1. The speeds on a stretch of highway are normally distributed with a mean of 68 mph with a standard deviation of 12 mph. The police decide they will only ticket the fastest 1.7% of people driving on the highway. What is the minimum speed you would have to travel in order to get a ticket? (5) 2. At a job that makes furniture it that rewards efficiency (reduced time to make chairs will result in a bonus). If...
Suppose that the speed at which cars go on the freeway is normally distributed with mean...
Suppose that the speed at which cars go on the freeway is normally distributed with mean 70 mph and standard deviation 8 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. 1. If one of the cars is randomly chosen, find the probability that it is traveling between 69 and 73 mph.
Assume that speeds on a given road are normally distributed with a mean speed of 55...
Assume that speeds on a given road are normally distributed with a mean speed of 55 mph and a standard deviation of 10 mph. Find the 98th percentile speed (the speed at or below which 98% of the traffic moves).
Assume that the speed of automobiles on an expressway during rush hour is normally distributed with...
Assume that the speed of automobiles on an expressway during rush hour is normally distributed with a mean of 66 mph and a standard deviation of 5mph. if 400 cars selected at random, how many will be traveling slower than 60 mph
Suppose that the speed at which cars go on the freeway is normally distributed with mean 73 mph and standard deviation 8 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-N b. If one car is randomly chosen, find the probability that it is traveling more than 72 mph. c. If one of the cars is randomly chosen, find...
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