-102. The distance between major cracks in a highway fol (a) What is the probability that...
The distance between major cracks in a highway follows an exponential distribution with a mean of 20 miles. What is the probability that the first major crack occurs between 12 and 15 miles of the start of inspection? Please enter the answer to 3 decimal places.
The distance between major cracks in a highway follows an exponential distribution with a mean of 5 miles. A. What is the probability that there are no major cracks in two separate 5-mile stretches of the highway? B. Given that there are no cracks in the first 5 miles inspected, what is the probability that there are no major cracks in the next 10 miles inspected?
The distance between major cracks in a highway follows an exponential distribution with a mean of 23 miles. What is the probability that there are no major cracks in two separate five-mile stretches? Please enter the answer to 3 decimal places.
The number of major faults on a randomly chosen 1 km stretch of highway has a Poisson distribution with mean 1.4. The random variable X is the distance (in km) between two successive major faults on the highway. What is the probability you must travel more than 3 km before encountering the next four major faults? Give your answer to 3 decimal places.
1. Suppose the number of cracks along a 100 km pipeline follows a normal distribution with Il = 25 and o = 5: • What is the probability that the number of cracks will be at least 30? Will exceed 30 min? (2+1=3 pts) What value c is such that the interval (25 - 0,25 + c) includes 98% of all cracks?! (1+2-3 pts) [Hint: Draw a standard normal curve, think about the meaning of area under the curve, the...
Suppose that the mean value of interpupillary distance (the distance between the pupils of the left and right eyes) for adult males is 65 mm and that the population standard deviation is 5 mm. (a) If the distribution of interpupillary distance is normal and a random sample of n = 25 adult males is to be selected, what is the probability that the sample mean distance x for these 25 will be between 64 and 66 mm? (Round all your...
Suppose that the mean value of interpupillary distance (the distance between the pupils of the left and right eyes) for adult males is 65 mm and that the population standard deviation is 5 mm. (a) If the distribution of interpupillary distance is normal and a random sample of n = 25 adult males is to be selected, what is the probability that the sample mean distance x for these 25 will be between 64 and 67 mm? (Round all your...
Given a standardized normal distribution (with a mean of 0 and a standard deviation of 1), complete parts (a) through (d) below. a. What is the probability that Z is between −1.51 and 1.81? The probability that Z is between −1.51 and 1.81 is _______.
Suppose that the mean value of interpupillary distance (the distance between the pupils of the left and right eyes) for adult males is 65 mm and that the population standard deviation is 5 mm. (a) If the distribution of interpupillary distance is normal and a sample of n =25 adult males is to be selected, what is the probability that the sample average distance for these 25 will be between 63 and 66 mm? (Round all your intermediate calculations to...
A random variable follows the continuous uniform distribution between 30 and 120 a) Calculate the probability below for the distribution. P(60less than or equals≤xless than or equals≤90) b) What are the mean and standard deviation of this distribution? wo neng kan jian wen ti