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yashar806

  • 2 years ago

need help !!!

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  1. yashar806
    • 2 years ago
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    We have four boxes, each of which contains ten coloured balls: Box 1 contains 4 red balls, 5 green balls and 1 yellow ball Box 2 contains 3 red balls, 5 green balls and 2 yellow balls Box 3 contains 2 red balls, 5 green balls and 3 yellow balls Box 4 contains 1 red ball, 5 green balls and 4 yellow balls If we randomly select one ball from each box, what is the probability of selcecting exactly one red ball? If we randomly select one ball from each box, what is the probability of selcecting at one red ball?

  2. honourznr
    • 2 years ago
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    ı think (4/10)*(3/10)*(2/10)*(1/10)

  3. yashar806
    • 2 years ago
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    no, the answer is 0.44

  4. yashar806
    • 2 years ago
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    but im not sure how to get that answer

  5. honourznr
    • 2 years ago
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    ı will think wait please

  6. honourznr
    • 2 years ago
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    we use all box isnt it?

  7. yashar806
    • 2 years ago
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    i guess so

  8. yashar806
    • 2 years ago
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    any ideA?

  9. honourznr
    • 2 years ago
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    ı dont understand question very well 4 balls will red?

  10. honourznr
    • 2 years ago
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    all the balls must be red ? 4 balls ? like red red red red ?

  11. electrokid
    • 2 years ago
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    \[{4\over4+5+1}\times{3\over3+5+2}\times{2\over2+5+3}\times{1\over1+5+4}=?\]

  12. yashar806
    • 2 years ago
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    no, the answer is 0.44

  13. yashar806
    • 2 years ago
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    of course its add up to 1

  14. electrokid
    • 2 years ago
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    no wait got

  15. electrokid
    • 2 years ago
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    1 ball from EACH box

  16. electrokid
    • 2 years ago
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    so, P = 1red from box1 and 3no-red + 1 red from box2 and 3 no red +...

  17. yashar806
    • 2 years ago
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    still dont get it

  18. PeterPan
    • 2 years ago
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    Okay... what's the probability of getting a red ball from ONLY the first box? That's the product of the probability of getting a red ball from the first box and NOT getting a red ball from the other three boxes...

  19. yashar806
    • 2 years ago
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    should I use bionomial probability?

  20. PeterPan
    • 2 years ago
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    I don't know what that is ^ (c'mon go easy on me :> ) But it seems the odds of getting a red ball from the first box is 2 out of 5 odds of NOT getting a red ball from the second box is 7 out of 10 not getting a red ball from the third : 4 out of 5 not getting a red ball from the fourth : 9 out of 10 Now just multiply these, and this'll be one of the things you add...

  21. honourznr
    • 2 years ago
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    ı did the questions

  22. PeterPan
    • 2 years ago
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    merhaba, @honourznr What did you get? ^.^

  23. yashar806
    • 2 years ago
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    merhaba?

  24. honourznr
    • 2 years ago
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    (4/10*7/10*8/10*9/10)+ (3/10*6/10*8/10*9/10)+(2/10*9/10*7/10*6/10)+(1/10*8/10*7/10*6/10)= 0.436=0.44

  25. PeterPan
    • 2 years ago
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    It's like "hello" only more exotic

  26. honourznr
    • 2 years ago
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    :)

  27. honourznr
    • 2 years ago
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    merhaba

  28. PeterPan
    • 2 years ago
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    Well, as long as @honourznr did the arithmetic correctly... there's no reason for it to be wrong :)

  29. PeterPan
    • 2 years ago
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    On second thought, maybe you need to redo that, @honourznr

  30. honourznr
    • 2 years ago
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    why?

  31. PeterPan
    • 2 years ago
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    Okay, it's correct.. just jumbled up in the products, but correct :D

  32. yashar806
    • 2 years ago
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    woww asweome what about the second one ?

  33. PeterPan
    • 2 years ago
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    At least one red ball?

  34. honourznr
    • 2 years ago
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    for example red green green yellow

  35. yashar806
    • 2 years ago
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    ben turk

  36. PeterPan
    • 2 years ago
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    a little confusing...

  37. PeterPan
    • 2 years ago
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    also, @honourznr I did not understand that :D

  38. honourznr
    • 2 years ago
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    so yashar806 do you understand the answer

  39. yashar806
    • 2 years ago
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    evet

  40. honourznr
    • 2 years ago
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    bileydim en baştan türkçe konuşıurdum:D

  41. yashar806
    • 2 years ago
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    Nerelisiniz?

  42. honourznr
    • 2 years ago
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    sne össye falanmı hazırlnısn

  43. yashar806
    • 2 years ago
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    DogoTürkistan'yi biliyor musun?

  44. honourznr
    • 2 years ago
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    evet biliyorum bnde türkiyedeyim

  45. honourznr
    • 2 years ago
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    ancak ben peterpanı anlamadım adam merhaba dedi türk değil nerden anladı türk olduğumu:)

  46. yashar806
    • 2 years ago
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    bilmiyorm zatan

  47. yashar806
    • 2 years ago
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    Adınız nedir?

  48. honourznr
    • 2 years ago
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    onur... senin

  49. yashar806
    • 2 years ago
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    Benim adım yashar

  50. honourznr
    • 2 years ago
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    memnun oldum yaşar :) iyiakşamlar ben gidiyorum

  51. yashar806
    • 2 years ago
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    Doğu türkistan'da

  52. yashar806
    • 2 years ago
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    benda qok memnun oldum onur

  53. honourznr
    • 2 years ago
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    bana mesaj yolla konuşuruz sonra ....

  54. yashar806
    • 2 years ago
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    tamam , iyiakshamlar

  55. honourznr
    • 2 years ago
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    sanada

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is replying to Can someone tell me what button the professor is hitting...

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