1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

HW Help (MATH)

Discussion in 'Questions and Answers' started by Jt0323, Jan 20, 2010.

Tags:
  1. Jt0323

    Jt0323 Fins Up! Luxury Box

    12,967
    7,293
    113
    Dec 7, 2007
    Las Vegas
    So one of my classes for psy is a stats class and our lab is online and we have a exam each week but the thing that sucks is we can't show work so we cant receive i partial credit. The quiz is 5 questions so if i get one wrong i fail. I finished the quiz and its not due until tomorrow at 5pm so just wanted to double check my work, if anyone wants to look it over.

    here are the questions i need help on.
    [​IMG]
    For 3 i got 6.20 First i did x-5 and got -1,-3,-1,2,4. then i squared it and added them up and got 31, divided by 5 numbers and got 6.2. I am pretty sure its right but agian not 100%

    For 3, i was confused with the squared out of the brackets, I got .04 and that does not seem right at all.

    The final one i think i got right but wanted to make sure. I did X*Y first got the sum of 56 then times that by 36 which to get 1904 then divided that by 4 and got 476. Thanks for the help!
     
  2. Skeet84

    Skeet84 New Member

    7,661
    2,275
    0
    Dec 14, 2007
    I will get Stitches in here. I am sure he knows or can help
     
    Jt0323 likes this.
  3. Stitches

    Stitches ThePhin's Biggest Killjoy Luxury Box

    53,148
    31,935
    113
    Nov 23, 2007
    Katy, TX
    I got: 6.2, .2, 22.45 (well 22.44994)

    On #4:
    (-1)+(-3)+(-1)+2+4= 1.
    1^2=1.
    1/5=.2

    On #5:
    56*36 = 2016.
    2016/4= 504.
    Then you have to SQRT 504.

    Those would be my best guesses for answers at least.
     
    Skeet84 and Jt0323 like this.
  4. unluckyluciano

    unluckyluciano For My Hero JetsSuck

    53,333
    23,006
    0
    Dec 7, 2007
    thats right.
     
  5. Jt0323

    Jt0323 Fins Up! Luxury Box

    12,967
    7,293
    113
    Dec 7, 2007
    Las Vegas
    thanks! yeah i see where i messed up on 5, i got 1904 instead of 2016 when i timed 56 and 36. 4 makes sense too! Thanks again! i really appreciate it!
     
  6. maynard

    maynard Who, whom?

    18,425
    6,346
    113
    Dec 5, 2007
    clearwater, fl
    interesting. i never did a single calculation with my stats classes other than real simple math

    it was all about knowing the interpretations.
     

Share This Page