A consumer organization estimates that over a 1-year period 18 % of cars will need to...
A consumer organization estimates that over a 1-year period 18 % of cars will need to be repaired once, 6 % will need repairs twice, and 4 % will require three or more repairs. What is the probability that a car chosen at random will need a) no repairs? b) no more than one repair? c) some repairs?
a) The probability that a car will require no repairs is nothing . (Do not round.)
b) The probability that a car will require no more than one repair is nothing . (Do not round.)
c) The probability that a car will require some repairs is nothing . (Do not round.)
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A consumer organization estimates that over a 1-year period 18
% of cars will need to...
Pls do all parts. Also try to do fast You are a used car collector. Say,...
Pls do all parts. Also try to do fast
You are a used car collector. Say, you just acquired five cars and each car needs to be repaired after 2 years with a probability of 1/10, independently a) What is the probability no cars need repair in the first two years? b) What is the probability exactly one needs repair in the first two years? c) Wh at is the probability one or more car needs repair in the first...
A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips,...
A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips, etc.). While none had more than three of these defects, 9% had three, 15% had two, and 28% had one defect. Find the expected number of appearance defects in a new car and the standard deviation.
Ed's Tires and Brakes has two locations, one on the northwest side of town and one...
Ed's Tires and Brakes has two locations, one on the northwest side of town and one on the southeast side of town. At both locations are performed routine tire repairs and rotations, as well as expensive brake repairs. This past week, 70% of the cars serviced at Ed's were serviced at the northwest location, while 30% of the cars were serviced at the southeast location. (No car was serviced at both locations.) Brake repairs were more typical at the northwest...
Ed's Tires and Brakes has two locations, one on the northwest side of town and one...
Ed's Tires and Brakes has two locations, one on the northwest side of town and one on the southeast side of town. At both locations are performed routine tire repairs and rotations, as well as expensive brake repairs. This past week, 80% of the cars serviced at Ed's were serviced at the northwest location, while 20% of the cars were serviced at the southeast location. (No car was serviced at both locations.) Brake repairs were more typical at the northwest...
Question 11 (1 point) The probability that a certain make of car will need repairs in...
Question 11 (1 point) The probability that a certain make of car will need repairs in the first six months is 0.33. A dealer sells 4 such cars. What is the probability that at least one of them will require repairs in the first six months? Write only a number as your answer. Round your answer to four decimal places (for example: 0.7319). Do not write as a percentage. Your Answer: Answer
The probability that a certain make of car will need repairs in the first six months...
The probability that a certain make of car will need repairs in the first six months is 0.35 . A dealer sells 6 such cars. What is the probability that at least one of them will require repairs in the first six months? Write only a number as your answer. Round your answer to four decimal places (for example: 0.7319). Do not write as a percentage.
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...
need help "Time headway" in traffic flow is the elapsed time between the time that one...
need help
"Time headway" in traffic flow is the elapsed time between the time that one car finishes passing a fixed point and the instant that the next car begins to pass that point. Let X- the time headway for two randomly chosen consecutive cars on a freeway during a period of heavy flow. The pdf of X is the following R 0.17 0.17 0.5) x 0.5 3 0 otherwise (a) What is the probability that time headway is at...
1. Coal is carried from a mine in West Virginia to a power plant in New...
1. Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 76 tons of coal into each car. The actual weights of coal loaded into each car are normally distributed, with mean μ = 76 tons and standard deviation σ = 0.5 ton. (a) What is the probability that one car chosen at random will have less than...
Pls do all parts. Also try to do fast
You are a used car collector. Say, you just acquired five cars and each car needs to be repaired after 2 years with a probability of 1/10, independently a) What is the probability no cars need repair in the first two years? b) What is the probability exactly one needs repair in the first two years? c) Wh at is the probability one or more car needs repair in the first...
Ed's Tires and Brakes has two locations, one on the northwest side of town and one on the southeast side of town. At both locations are performed routine tire repairs and rotations, as well as expensive brake repairs. This past week, 80% of the cars serviced at Ed's were serviced at the northwest location, while 20% of the cars were serviced at the southeast location. (No car was serviced at both locations.) Brake repairs were more typical at the northwest...
Question 11 (1 point) The probability that a certain make of car will need repairs in the first six months is 0.33. A dealer sells 4 such cars. What is the probability that at least one of them will require repairs in the first six months? Write only a number as your answer. Round your answer to four decimal places (for example: 0.7319). Do not write as a percentage. Your Answer: Answer
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...
need help
"Time headway" in traffic flow is the elapsed time between the time that one car finishes passing a fixed point and the instant that the next car begins to pass that point. Let X- the time headway for two randomly chosen consecutive cars on a freeway during a period of heavy flow. The pdf of X is the following R 0.17 0.17 0.5) x 0.5 3 0 otherwise (a) What is the probability that time headway is at...
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