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Get Full Access to Mathematical Statistics With Applications - 7 Edition - Chapter 7 - Problem 52e
Get Full Access to Mathematical Statistics With Applications - 7 Edition - Chapter 7 - Problem 52e

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# Resistors to be used in a circuit have average resistance

ISBN: 9780495110811 47

## Solution for problem 52E Chapter 7

Mathematical Statistics with Applications | 7th Edition

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Problem 52E

Problem 52E

Resistors to be used in a circuit have average resistance 200 ohms and standard deviation 10 ohms. Suppose 25 of these resistors are randomly selected to be used in a circuit. a What is the probability that the average resistance for the 25 resistors is between 199 and 202 ohms?

b Find the probability that the total resistance does not exceed 5100 ohms. [Hint: see Example 7.9.]

Reference

Step-by-Step Solution:
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PHY 184 Week 6 Notes-Currents and Resistance 10/3-10/6  The battery produces a constant voltage  When closed the current is able to flow o Don’t forget only the electrons move  In the absence of an electric field electrons move randomly within the conductor o When an electric field is applied electrons get an additional velocity called drift velocity  It is 10 times slower than thermal velocity  How is it almost instant then o Closing the current starts an electric field and sets the electrons in motion Charge Carriers  Consider a conductor with cross section A and electric field E  Suppose there are n positive carriers per unit volume, all evenly distributed in the same dV with drift velocity v

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##### ISBN: 9780495110811

Since the solution to 52E from 7 chapter was answered, more than 575 students have viewed the full step-by-step answer. The answer to “Resistors to be used in a circuit have average resistance 200 ohms and standard deviation 10 ohms. Suppose 25 of these resistors are randomly selected to be used in a circuit. a What is the probability that the average resistance for the 25 resistors is between 199 and 202 ohms?b Find the probability that the total resistance does not exceed 5100 ohms. [Hint: see Example 7.9.]Reference” is broken down into a number of easy to follow steps, and 66 words. Mathematical Statistics with Applications was written by and is associated to the ISBN: 9780495110811. This full solution covers the following key subjects: ohms, resistance, resistors, average, Circuit. This expansive textbook survival guide covers 32 chapters, and 3350 solutions. The full step-by-step solution to problem: 52E from chapter: 7 was answered by , our top Statistics solution expert on 07/18/17, 08:07AM. This textbook survival guide was created for the textbook: Mathematical Statistics with Applications , edition: 7.

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Resistors to be used in a circuit have average resistance