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Suppose 900 draws are made at random from a box that contained five numbers which were 7, 8, 12, 10, 9. Find the expected value and the SE for the sum. Ave is 9.2 and the SD is 1.72
  • the expected value is 8120 and the SE for the sum is 50.2
  • the expected value is 8260 and the SE for the sum is 52.3
  • the expected value is 8330 and the SE for the sum is 51.3
  • the expected value is 8280 and the SE for the sum is 51.6
  • the expected value is 8240 and the SE for the sum is 52.1
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    Carlos Rodriguez <carlos@math.albany.edu>
    This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind
    Last modified: Wed May 13 12:29:11 EDT 1998