The lifetime of a refrigerator (measured in years) is exponentially distributed with the expected lifetime equal to 17. What is the probability IN PERCENTAGES that the refrigerator will last more than 19?
The lifetime of a refrigerator (measured in years) is exponentially distributed with the expected lifetime equal...
Suppose hard drive A has a lifetime that is exponentially distributed with mean of 7 years and hard drive B has a lifetime that is exponentially distributed with a mean of 4 years. What is the probability that drive B lasts at least 6 times longer than drive A?
6. Suppose that the lifetime of an Ollivander's magic wand is exponentially distributed with a mean of 20 years. Luna Lovegood has had her wand for 25 years. What is the probability that it will last an additional 10 years?
The lifetime of a microprocessor is exponentially distributed with a variance of 4,000,000 hours. a. What proportion of microprocessors will function for less than 5,000 hours? b. A microprocessor has been functioning for 1,000 hours. What is the probability that it will function for a total of at least 6,000 hours?
The lifetime of a type-A bulb is exponentially distributed with parameter λ. The lifetime of a type-B bulb is exponentially distributed with parameter μ, where μ>λ>0. You have a box full of lightbulbs of the same type, and you would like to know whether they are of type A or B. Assume an a priori probability of 1/4 that the box contains type-B lightbulbs. Assume that λ=3 and μ=4. Find the LMS estimate of T2, the lifetime of another lightbulb...
1. The time to failure of a digital camera (in hours) is distributed exponentially with parameter 10^−4 . a) Find the expected time to failure. (5) b) Find the probability that the camera will last less than 9,000 hours or more than 12,000 hours. (10) c) Find the probability that the camera will last more than 10,000 hours. (10) d) If the camera has lasted 10,000 hours, find the probability that it will last another 10,000 hours or longer. (10...
The lifetime of a printer costing 200 is exponentially distributed with mean 2 years. The manufacturer agrees to pay a full refund to a buyer if the printer fails during the first year following its purchase, and a one-half refund if it fails during the second year. If the manufacturer sells 100 printers, how much should it expect to pay in refunds? A. 6,321 B. 7,358 C. 7,869 D. 10,256 E. 12,642
The lifetime of a battery in a certain application is normally distributed with mean = 16 hours and standard deviation o = 2 hours. a) What is the probability that a battery will last more than 19 hours? Select] b) Find the 10th percentile of the lifetimes. (Select] c) A particular battery lasts 14.5 hours. What percentile is its lifetime on? Select)
Lucky Lumen light bulbs have an expected life that is exponentially distributed with a mean of 20,000 hours. Determine the probability that one of these light bulbs will last: 1. At least 20,000 hours 2. No longer than 4000 hours 3. Between 4,000 and 24,000 hours Please show all work
The life of a light bulb is exponentially distributed with a mean of 1,000 hours. What is the probability that the bulb will last more than 1,200 hours? A .3012 B .4345 C .3679 D .6988
l rt in order for you 2. The lifespan of a new refrigerator is normally distributed with a mean of 15.2 years standard deviation of 2.1 years. Determine the following and a a) The probability that one randomly selected refrigerator has a lifespan more than 14 years. The probability that one randomly selected refrigerator has a lifespan less than 13 years. b) c) The probability that one randomly selected refrigerator has a lifespan between 12 and 18 years. d) The...