The assembly time for a product is uniformly distributed between 7 and 11 minutes. The probability of assembling the product between 8 and 10 minutes is
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The assembly time for a product is uniformly distributed between 7 and 11 minutes. The probability of assembling the product between 8 and 10 minutes is _____.
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- A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 43 and 49 minutes. Find the probability that a given class period runs between 47 and 48.8 minutes. Find the probability of selecting a class that runs between 47 and 48.8 minutes.The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer weight is 1100lbs. Find the probability that the weight of a randomly selected steer is between 919 and 1180lbs. Round your answer to four decimal places.The time waiting when a telephone call is placed to an insurance company is uniformly distributed between 0 and 14 minutes. Find the probability that the waiting time is between 2 and 9 minutes.
- The assembly time for a product is uniformly distributed between 6 and 10 minutes. The probability of assembling the product in less than 5 minutes is _____A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 45.0 and 55.0 minutes. Find the probability that a given class period runs between 51.25 and 51.5 minutes. Find the probability of selecting a class that runs between 51.25 and 51.5 minutes.A screening test for a particular infectious disease shows a positive test result in 90% of all cases when the disease is actually present, and in 10% of all cases when it is not. Assume that t% of the population is infected, where t is = 1. For a randomly chosen from the population person, find the probability that the person is actually infected if the test shows positive.
- A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 52.0 minutes. Find the probability that a given class period runs between 50.75 and 51.5 minutes. Find the probability of selecting a class that runs between 50.75 and 51.5minutes.NoneSemiconductor lasers used in optical storage products require higher power levels for write operations than for read operations. High-power-level operations lower the useful life of the laser. Lasers in products used for backup of higher-speed magnetic disks primarily write, and the probability that the useful life exceeds five years is 0.0106. Lasers that are in products that are used for main storage spend approximately an equal amount of time reading and writing, and the probability that the useful life does not exceed five years is 0.5847. Now, 0.7486 of the products from a manufacturer are used for backup, while the remaining manufacturer's products are used for main storage. What is the probability that a laser that failed before five years came from a product used for backup? Select one: O a. 0.87645253 b. 0.01780615 c. 1.07899181 d. 0.83440299
