Question

A certain machine makes electrical resistors having a mean resistance of 40 ohms and a standard deviation of 2 ohms. Assuming that the resistance follows a normal distribution and can be measured to any degree of accuracy, what percentage of resistors will have a resistance exceeding 43 ohms?

Answer 1

Answer:

If a certain machine makes electrical resistors

having a mean resistance of 40 ohms and a standard

deviation of 2 ohms, what is the probability that a

random sample of 36 of these resistors will have a combined

resistance of more than 1458 ohms?

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