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briana.img

  • one year ago

Help me figure this out?

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  1. briana.img
    • one year ago
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  2. briana.img
    • one year ago
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    This table is confusing and I don't know how I should be looking at it.

  3. briana.img
    • one year ago
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    I've be doing 264/629 * 47/629 and other variations but it doesn't seem to work

  4. anonymous
    • one year ago
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    is there any answer choices??

  5. briana.img
    • one year ago
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    0.054 0.375 0.264 0.507

  6. anonymous
    • one year ago
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    oh my bad i didn't see tha screen shot

  7. briana.img
    • one year ago
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    it's alright lol

  8. anonymous
    • one year ago
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    i see a pattern in ther tho

  9. anonymous
    • one year ago
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    *there

  10. anonymous
    • one year ago
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    264+47-311 and 63+11=74 and 25+4=29

  11. briana.img
    • one year ago
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    @DJthereal what? LOL

  12. anonymous
    • one year ago
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    lol nvm

  13. anonymous
    • one year ago
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    @LynFran where did 111 come from??

  14. anonymous
    • one year ago
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    oh ok..so u take tha negative total and tha A total and divide them??

  15. briana.img
    • one year ago
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    what's going on? lol

  16. anonymous
    • one year ago
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    @LynFran jus figured it out i think

  17. briana.img
    • one year ago
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    it's not one of the answers and i actually wanted to learn how to do it because i had another problem that's similar lol

  18. briana.img
    • one year ago
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    @jim_thompson5910 help?

  19. anonymous
    • one year ago
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    oh i think i get it tho

  20. anonymous
    • one year ago
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    i can try to explain it if u need me to

  21. briana.img
    • one year ago
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    @jim_thompson5910 help?

  22. briana.img
    • one year ago
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    @DJthereal yes please but i don't think she got it right because those aren't one of the options

  23. anonymous
    • one year ago
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    i kno but she did give me a big hint

  24. briana.img
    • one year ago
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    aaaah okay so can you explain it please?

  25. anonymous
    • one year ago
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    yea jus give me like 5 or 6 minutes

  26. jim_thompson5910
    • one year ago
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    how many people have a blood type that is A-positive?

  27. briana.img
    • one year ago
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    264

  28. jim_thompson5910
    • one year ago
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    and how many people have Rh-negative blood?

  29. anonymous
    • one year ago
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    yea i tried 111/264 and i thought that wood be tha answer

  30. briana.img
    • one year ago
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    I don't exactly know what Rh means but 111?

  31. jim_thompson5910
    • one year ago
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    neither do I, but luckily we don't need to know the biology behind the problem

  32. jim_thompson5910
    • one year ago
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    so there are 264+111 = 375 people who have either A-positive or Rh-negative blood types

  33. jim_thompson5910
    • one year ago
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    this is out of 740 people total (bottom right corner) We then divide P(A-positive OR Rh-negative) = (# of people who have A-positive or Rh-negative)/(# total) P(A-positive OR Rh-negative) = (375)/(740) P(A-positive OR Rh-negative) = 0.50675675675676 P(A-positive OR Rh-negative) = 0.507

  34. briana.img
    • one year ago
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    Aaaaah okay thank you!! Makes much more sense now

  35. jim_thompson5910
    • one year ago
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    I'm glad it's making more sense

  36. briana.img
    • one year ago
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    Helped me understand my other problem as well! Thank you!!

  37. anonymous
    • one year ago
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    @jim_thompson5910 good job i was getting confused

  38. briana.img
    • one year ago
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    Could you guys help me with one more problem that I can't wrap my head around?

  39. briana.img
    • one year ago
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    I think it's Rolling a 4 or rolling an odd number??? But I don't know it's confusing

  40. anonymous
    • one year ago
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    wat does mutually exclusive mean??

  41. jim_thompson5910
    • one year ago
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    if two events are `mutually exclusive`, then that means that they CANNOT happen at the same time example: flipping a heads AND a tails on the same coin

  42. anonymous
    • one year ago
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    oh ok

  43. anonymous
    • one year ago
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    so it's not c because 5 is a prime number

  44. briana.img
    • one year ago
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    Yeah I'm pretty sure it's D

  45. briana.img
    • one year ago
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    Thanks guys!!

  46. jim_thompson5910
    • one year ago
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    yep 4 is even, so it's impossible to roll an even AND odd number at the same time

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