Central Limit Theorem

  1. The sampling distribution of means or proportions for large random samples has what shape? 

    -5-4-3-2-1012345

  2.  Please answer question 1 to reveal this question.

    Samples that are unassociated with each other are said to be  .

  3.  Please answer question 2 to reveal this question.

    The normal approximation for sampling distributions works better for a  sample size.

  4.  Please answer question 3 to reveal this question.

    For each description of a variable, choose its corresponding histogram shape.
    • Chicago household incomes:
    • Heights at parent-child campout:
    • Numbers from spins:
    • Scores on driver's license test:
    • Weights of cartons of eggs:

  5.  Please answer question 4 to reveal this question.

    Select a variable that would look very different from the normal curve: