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anonymous

  • one year ago

Probability Help!!! A survey of 1000 students in a local high school revealed the following information: 450 students are male 800 plan to attend college 300 are immigrants 350 are males who plan to attend college 250 are immigrants who plan to attend college 120 are immigrant males 100 are male immigrants who plan to attend college How many students are male, non-immigrants, who do not plan to attend college?

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  1. SolomonZelman
    • one year ago
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    Students: (1) male, (2) non-immigrants, (3) do not plan to attend college `450 students are male` `800 plan to attend college` X (they plan to attend college) `300 are immigrants` X (they are immigrants) `350 are males who plan to attend college` X (they plan to attend college) `250 are immigrants who plan to attend college` X (they are immigrants) `120 are immigrant males` X (they are immigrants) `100 are male immigrants who plan to attend college.` X (they plan to attend college)

  2. SolomonZelman
    • one year ago
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    there is only one category that is NOT EXCLUDED..... So can you answer your question now?

  3. anonymous
    • one year ago
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    Can I make a Venn Diagram with this and work backwards. Using those three

  4. anonymous
    • one year ago
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    okay no. at least i don't see how... so I need to find P(M and I' and C') But I am not clear how to come up with this formula

  5. anonymous
    • one year ago
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    nevermind i figured it out... if anyone knows the formula though without working backwards that would be appreciated

  6. texaschic101
    • one year ago
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    |dw:1444276241061:dw| what did you get ? Because I got 80...just wondering....and I got 70 who didn't fit in the criteria.

  7. texaschic101
    • one year ago
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    but I am not 100% sure it is correct

  8. anonymous
    • one year ago
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    yes i got 80 as well... which is the right answer... but the next problem asks a similar thing, but the only way i can figure them out is drawing these diagrams... but i guess i want to make sure there isn't some equation or formula that i need to know just in case there is a question in which it asks for the intersection of 3 things but for whatever reason am unable to draw a diagram.

  9. texaschic101
    • one year ago
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    I just go by the diagram...I also use this..check it out https://www.easycalculation.com/algebra/venn-diagram-3sets.php

  10. texaschic101
    • one year ago
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    if it does not give the intersection of 3 things...like it did in this one....thats when you sub in x

  11. anonymous
    • one year ago
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    alright thank you. i will give it a go and see how it work if i come across another. thank you.

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