Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

?
Lv 6
? asked in Science & MathematicsMathematics · 7 months ago

what would be the expected value of getting a 40 dollar bill as a gift?

how do i solve this when there is only one number in the question?Am i to guess its either -40 or 0?

3 Answers

Relevance
  • ignoramus
    Lv 7
    7 months ago

    It is an exceptionally dumb question.  It has nothing whatever to do with probability.

  • billrussell42
    Lv 7
    7 months ago

    zero value, as there is no such thing as a 40 dollar bill. 

  • oldprof
    Lv 7
    7 months ago

    I'm guessing you are not an American.  There is no $40 bill.  So the probability of receiving one is p(s = 40) = n(40)/N = 0/N = 0.  Which means the expected value E(s = 40) = p(s=40)*40 = 0*40 = 0 ANS.

Still have questions? Get answers by asking now.