STA169 Statistics I

Statistics ITU Board 2075

A certain machine makes electrical resistors having mean resistance of 40 ohms and standard deviations of 2 ohms. Assuming that the resistance follows a normal distribution. 1. What percentage of…

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A certain machine makes electrical resistors having mean resistance of 40 ohms and standard deviations of 2 ohms. Assuming that the resistance follows a normal distribution.

  1. What percentage of resistors will have a resistance exceeding 43 ohms?
  2. What percentage of registers will have a resistance between 30 ohms to 45 ohms?
A worked answer is on its wayMeanwhile, read the Statistics I notes for this topic.

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