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March 27, 2017

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The home states of a certain group of people are distributed as follows: 53 percent are from MISSOURI, 21 percent are from KANSAS, and 26 percent are from IOWA. (No one in the group had a home state other than one of these three.)

(Note: Your answer to the question below should be rounded to three decimal places.)

Suppose we randomly select a person from this group. What is the expected value of the number of letters in the selected person's home state?

  • Statistics - ,

    5.54134

  • Statistics - ,

    (53*8)+(21*6)+(26*4)= 654

    654/100= 6.54 letters

  • Statistics - ,

    6.64

  • Statistics - ,

    oops I read this from my textbook where the values are a bit different.
    Please ignore my misinformation world.

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