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Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5...

Suppose that the age of students at George Washington Elementary school is uniformly distributed between 5 and 11 years old. 45 randomly selected children from the school are asked their age. Round all answers to 4 decimal places where possible.

  1. What is the distribution of XX? XX ~ U(,)
  2. Suppose that 45 children from the school are surveyed. Then the sampling distribution is
  3. What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)
  4. What is the probability that the average of 45 children will be between 8 and 8.6 years old?
Math   Statistics-And-Probability   
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