In a company, a mechanic maintains four very important machines in a production process, which usually break down on average every 10 hours. This time between breakdowns has an exponential distribution. The mechanic spends on average 7 hours repairing a loom and its repair time also has an exponential distribution. Determine the average time a machine spends waiting for maintenance.

In a company, a mechanic maintains four very important machines in a production process, which usually break down on average every 10 hours. This time between breakdowns has an exponential distribution. The mechanic spends on average 7 hours repairing a loom and its repair time also has an exponential distribution. Determine the average time a machine spends waiting for maintenance.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A popular social media platform has begun offering stock shares to the public. In the past 2 years, the price of the stock has generally increased. An investment specialist gathers data on the stock price during the past 2 years and creates an exponential model for estimating the stock price based on the number of weeks after the first public offering. Based on the scatterplot and computer output, a reasonable estimate for the stock price for week 95 is: O $2.27 because y 0.0022(95) + 2.0583 = 2.2673. O $9.65 because log y =0.0022(95) +2.0583 2.2673 and e2.2673 = 9.6533. log(Stock Price) vs. Weeks O $185.05 because kg y =0.0022(95)+2.0583=2.2673 and 102 2673 = 185.05. 2.28 2.26 224 O $220.44 because log y 0.0030(95)+2.0583 2.3433 and 2.22 22 2 12 2 16 102.3433 = 220.44 ock Price)
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