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Question: You have a device that uses a single battery, and you operate this device continuously, never turning it off. Whenever a battery fails, you replace it with a brand new one immediately. Suppose the lifetime of a typical battery has an exponential distribution with mean 205 minutes. Suppose you operate the device continuously for three days, making battery changes when necessary. Find the probability that you will observe at least 25 failures.
During the Cold War, why was the U.S. worried about the placement of Soviet missiles in Cuba? What response did the U.S. military (Joint Chiefs of Staff) advocate? What would likely have been the result if Kennedy had followed that advice?
The hazard rate of the failure time is a constant 0.10 and the force of interest is a constant 0.05. If Z is the present value of the benefits, find the probability that: (a) 0 Z ≤ 0.5, (b) 0 ≤ Z ≤ 0.5 and (c) 0 ≤ Z ≤ 0.7.
a shipment of 30 tires arrived at a tire shop this past weekend and unknown to the manager eight of the tires are
Calculate the slope and intercept of the least-squares line. (Give the answer to three decimal places.). Compute an estimate of the average runoff volume when rainfall volume is 75.
Given that the price-to-earnings ratios are uniformly distributed, answer the following questions. What percent of price-to-earnings ratios are between 1.90 and 2.48?
In a class roster of 18 students, what are the chances that there are at least 2 people with the same birthday (same day, not same year)?
A researcher collected sample data for 17 women ages 18 to 24 . The sample had a mean serum cholesterol level (measured in mg/100 mL) of 188.8 , with a standard deviation of 5.5.
a consulting firm submitted a bid for a large research project. the firms management initially felt they had a 50-50
Calculate the expected monetary value for the given bids.What is the best bidding decision?What is the expected value of perfect information?
show that each of the following rules for playing the tower of hanoi works and state the initial conditions for each
The daily revenue totals for the next 30 days will be monitored. What is the probability what the mean daily revenue for the next 30 days will exceed $7500?
A state lottery's Pick 3 game asks players to choose a three-digit number, 000 to 999. The state chooses the winning three-digit number at random, so that each number has probability 1/1000. You win if the winning number contains the digits in you..
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