Resistors to be used in a circuit have average resistance 200 ohms and standard
Chapter 7, Problem 7.52(choose chapter or problem)
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 totalresistance does not exceed 5100 ohms. [Hint:see Example 7.9.]
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