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anonymous

  • one year ago

There are seven black socks, eight blue socks, 10 white socks, and five patterned socks in the drawer. What is the probability of pulling a blue sock, replacing it, and then drawing a patterned sock out of the drawer?

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  1. anonymous
    • one year ago
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    @OregonDuck

  2. OregonDuck
    • one year ago
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    Since there is replacement, the total no. of socks in the drawer does not change, therefore: The probability of pulling a patterned sock on after the replacement= no. of patterned socks/total no. of socks = 5/30 = 1/6

  3. moazzam07
    • one year ago
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    7/30 it's 7 black socks

  4. moazzam07
    • one year ago
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    Wait no

  5. anonymous
    • one year ago
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    im going to start putting the answers up lol 3/30 13/60 2/45 4/9

  6. moazzam07
    • one year ago
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    You was right

  7. moazzam07
    • one year ago
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    That would be helpful

  8. OregonDuck
    • one year ago
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    well first of all there are 25 socks total/ Considering there are 8 blue socks you have a 8/25 chance of getting a blue sock and because you replace that sock there are still 25 socks and the odds of getting a patterned sock is 5/25. so we just multiply the two together 8/25 * 5/25 = 40/625 simplify to 8/125. I pretty sure that's the answer it's been awhile since I have done this.

  9. moazzam07
    • one year ago
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    Your right @OregonDuck

  10. anonymous
    • one year ago
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    thats not a choice tho

  11. anonymous
    • one year ago
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    @heretohelpalways

  12. anonymous
    • one year ago
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    I am here

  13. anonymous
    • one year ago
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    any idea?

  14. anonymous
    • one year ago
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    yes, what is the probability of each event happening by itself?

  15. anonymous
    • one year ago
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    1/30

  16. anonymous
    • one year ago
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    and what are the options?

  17. moazzam07
    • one year ago
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    Ok it's 8 blue socks and 5 pattern socks

  18. anonymous
    • one year ago
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    3/30 16/60 2/45 4/9

  19. anonymous
    • one year ago
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    so if it is 8/30 probability for blue socks and 5/30 for patterned socks, multiply 8/30 by 5/30

  20. moazzam07
    • one year ago
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    The probability for picking blue and replacing it would be 13/30

  21. anonymous
    • one year ago
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    ? that would not work im so confused

  22. moazzam07
    • one year ago
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    30 divided by 13 is 2.4

  23. anonymous
    • one year ago
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    still no :(

  24. moazzam07
    • one year ago
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    What are the options

  25. anonymous
    • one year ago
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    ahhhhhhhhhhhh

  26. anonymous
    • one year ago
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    so the answer would be 2/45

  27. anonymous
    • one year ago
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    why would it be 2/45

  28. anonymous
    • one year ago
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    @Owlcoffee

  29. anonymous
    • one year ago
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    because 8/30*5/30=2/45

  30. moazzam07
    • one year ago
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    Yes heretohelpalways it right

  31. moazzam07
    • one year ago
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    C is the correct answer

  32. anonymous
    • one year ago
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    to find the probability of a compound event, multiply each independent event

  33. anonymous
    • one year ago
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    in this case, the independent event probabilities are 8/30 and 5/30

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