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anonymous

  • 5 years ago

I need help with probability and the counting principle

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  1. amistre64
    • 5 years ago
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    how sophisticated do you need to go?

  2. amistre64
    • 5 years ago
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    I got a rudimentary understanding of probability

  3. anonymous
    • 5 years ago
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    6th grade level it doesn't make sense to me

  4. amistre64
    • 5 years ago
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    give us a problem and lets see if we can work thru it :)

  5. anonymous
    • 5 years ago
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    ok thanks

  6. anonymous
    • 5 years ago
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    how many different words can be made using the words quick, slow, and sad and the suffixes -ness, -er, and -ly.

  7. anonymous
    • 5 years ago
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    is the answer 9

  8. amistre64
    • 5 years ago
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    so we have 4 words, and 3 endings. right? each word can be made 3 times; sadness, sadder, sadly... you do that 4 times and you get 12 words. theres a "tree" you can form" but Id have to go to paint to do it...

  9. anonymous
    • 5 years ago
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    three words and three endings

  10. amistre64
    • 5 years ago
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    yeah...I saw 4 words...that was my mistake :)

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  11. amistre64
    • 5 years ago
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    the concept is the same tho....so yeas, 9 :)

  12. anonymous
    • 5 years ago
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    this is difficult to explain without drawing pictures

  13. anonymous
    • 5 years ago
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    I need to know the probability of two colored spinners and stuff like that

  14. amistre64
    • 5 years ago
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    write it out, lets see if I can understand it :)

  15. anonymous
    • 5 years ago
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    Great! Thanks for being so patient

  16. anonymous
    • 5 years ago
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    Here goes...

  17. anonymous
    • 5 years ago
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    a coin is tossed, and a letter is chosen from a bag . The letters in the bag are X, P, Z, K, M, A, E, Y 11. How many outcomes are possible? 12. Find P(heads, E). 13. What is the probability of tails and P, Z, or M?

  18. anonymous
    • 5 years ago
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    I don't understand what the coin has to do with it

  19. anonymous
    • 5 years ago
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    I'm never gonna get this

  20. amistre64
    • 5 years ago
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    the coin is jsut an additional "variable" in it.... you start with the coin toss, which is 50% chance of getting heads or tails right?

  21. anonymous
    • 5 years ago
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    yes

  22. amistre64
    • 5 years ago
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    ther are 2 outcomes from the coin toss, and 8 outcomes from the letters in the bag right? 16 outcomes total correct?

  23. anonymous
    • 5 years ago
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    I think I was making it harder thatn it actually was

  24. anonymous
    • 5 years ago
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    thank you

  25. amistre64
    • 5 years ago
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    youre welcome, sometines all it takes is a fresh set of eyes :)

  26. anonymous
    • 5 years ago
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    but wait

  27. anonymous
    • 5 years ago
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    Can I just run this by you to make sure I understand everything

  28. amistre64
    • 5 years ago
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    P(heads,E) I would assume means (100/2,100/16) sure run it by me..

  29. amistre64
    • 5 years ago
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    50% and 100/8 actually... 12.5% P(50%,12.5%)

  30. anonymous
    • 5 years ago
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    yikes I think I'm lost again

  31. anonymous
    • 5 years ago
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    how did you get 100 over 8

  32. amistre64
    • 5 years ago
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    I dont quite understand the notation P(heads,E) but to me it would mean that there is a 1 in 2 chance of getting heads: 100/2 = 50% and a 1 in 8 chance of getting an "E"; 100/8 = 12.5%

  33. anonymous
    • 5 years ago
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    oh ok

  34. amistre64
    • 5 years ago
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    100 is just the "percent" number.... I use it to adjust for the "chances" into an actual percentage

  35. anonymous
    • 5 years ago
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    what are independent vs. dependent events

  36. anonymous
    • 5 years ago
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    Believe it or not I do well in math but this probability stuff is confusing to me

  37. amistre64
    • 5 years ago
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    when 2 things happen without a cause, they are independant of each other. The snow falling in alaska and my shoe coming untied in NewYork are not related, they are independant of each other. the opposite of that is events that occur because of the other. like: The light was off, I stubbed my toe.

  38. anonymous
    • 5 years ago
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    cool analogy but how do I apply it to this unit on probability

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