Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Math & Sciences (https://www.askmehelpdesk.com/forumdisplay.php?f=402)
-   -   Probability math (https://www.askmehelpdesk.com/showthread.php?t=178696)

  • Jan 30, 2008, 06:47 PM
    maureenhalsey
    Probability math
    I don't know how to answer this question...

    Suppose you roll a number cube. Which event has the same probability as P(not 1,2 or 3)?

    a. P(3 or 4)
    b. P(less than 5)
    c. P(more than 4)
    d. P(not an odd number)
    e. Not here

    I figured it was 1/2 but when I answered e. Not here it was wrong. Can someone explain exactly how to work this problem out?

    Thanks,

    Taz
  • Jan 30, 2008, 09:47 PM
    PolluxCastor
    You were right with the 1/2. but there is a choice in the list that has a probability of 1/2.

    Think about why P(not 1,2 or 3) is 1/2, then which answer has that same property.

  • All times are GMT -7. The time now is 06:05 AM.