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anonymous

  • one year ago

Please help! I don't understand this. Picture of the graph uploaded below. If 300 people donated blood in Springfield, about how many were AB+? (Note that you must multiply by the percent to find out.)

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  1. anonymous
    • one year ago
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  2. jim_thompson5910
    • one year ago
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    I honestly hate problems like this. They are designed to trip people up because of the wiggle room in the values you read off the graph. It's some percentage less than 5%, but the exact percentage? Who knows really. What percentage for AB+ did you get?

  3. anonymous
    • one year ago
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    I mean I figured it had to be somewhere around 1% or 1.5% I can't really tell.

  4. jim_thompson5910
    • one year ago
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    The blue bar for AB+ is larger, and beyond the halfway point from 0% to 5% so I'd say the blue is like 3% maybe?

  5. jim_thompson5910
    • one year ago
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    but this is an educated guess really

  6. phi
    • one year ago
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    I would guess about 3%

  7. jim_thompson5910
    • one year ago
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    the red bar is below halfway, so 1% or so in total, 1% + 3% = 4% for all of AB+ from both towns

  8. jim_thompson5910
    • one year ago
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    whatever the percent is, multiply the decimal form of it by 300 to get your answer

  9. phi
    • one year ago
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    It sounds like they want only Springfield?

  10. jim_thompson5910
    • one year ago
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    oh right, nvm the other town then

  11. anonymous
    • one year ago
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    I believe the answer is 9.

  12. jim_thompson5910
    • one year ago
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    3% of 300 = 9, yes

  13. anonymous
    • one year ago
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    Ah well, thank you for helping me make sense of it. I'll probably be back with another simple problem that i think is difficult!!

  14. jim_thompson5910
    • one year ago
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    you're welcome

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