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Math Help - Word problem dont know where to begin

  1. #16
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    I dont know how to do that. Man this is really confusing to me, I am reading what you guys post I am just having problems, Please dont get mad at me! Ugh !

    Okay so I know what i need to find now (thank you) Just dont know how. I am checking my notes and book and just cant remember this stuff!
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  2. #17
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    Quote Originally Posted by Bradley55 View Post
    Okay, so after doing my calculations i got the expected value of 1.


    questions "a" asks for the mean and standard deviation for c.

    Isnt the mean 1.5? just (3+2+1+0 / 4 = 1.5)? Mr F says: This is only true if each value has the same probability of occuring.

    What do you think the mean value of 1 and 11 is if the probability of 11 occuring is 0.99999 and the probability of 1 occurring is 0.00001 ....? Would you argue (1 + 11)/2 ....?

    And my notes only reminded me of this, they are incomplete , Mr F says: ?

    so if i did any of this right what should be my next step?
    ..
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  3. #18
    Member Last_Singularity's Avatar
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    Sorry, I am out of ideas. Mr. Fantastic?
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  4. #19
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    Quote Originally Posted by Last_Singularity View Post
    Sorry, I am out of ideas. Mr. Fantastic?
    This seems the best idea:

    Quote Originally Posted by Last_Singularity View Post
    Your teacher has a lot of explaining to do, then, not us. Ask your teacher what she/he has taught you so far in class can be used to do this problem. [snip]
    I also suggest trying to get a complete set of notes.

    To the OP: No offence but this thread is going nowhere for the simple fact that you lack understanding of the basic tools necessary to answer the questions you have posted. You therefore have deeper problems that cannot be addressed in this thread.

    Thread closed.
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