The number of seconds XX after the minute that class ends is uniformly distributed between 0 and 60. Round all answers to 4 decimal places where possible. What is the distribution of XX? XX ~ U(,)  then the sampling distribution is Suppose that 38 classes are clocked.  What is the distribution of ¯xx¯ for this group of classes? ¯xx¯ ~ N(,) What is the probability that the average of 38 classes will end with the second hand between 27 and 30 seconds?

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The number of seconds XX after the minute that class ends is uniformly distributed between 0 and 60. Round all answers to 4 decimal places where possible.

  1. What is the distribution of XX? XX ~ U(,)
  2.  then the sampling distribution is
  3. Suppose that 38 classes are clocked.  What is the distribution of ¯xx¯ for this group of classes? ¯xx¯ ~ N(,)
  4. What is the probability that the average of 38 classes will end with the second hand between 27 and 30 seconds? 
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