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anonymous

  • one year ago

The dot plots below show the test scores of sixth- and seventh-grade students:

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    Based on visual inspection of the dot plots, which grade, if any, appears to have the higher mean score? Grade 6 Grade 7 Both groups show about the same mean score. No conclusion about mean score can be made from the data.

  3. anonymous
    • one year ago
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    What do you think ? It's an irony younger ones are usually smarter .

  4. anonymous
    • one year ago
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    That's a major clue right there

  5. anonymous
    • one year ago
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    Your guess?

  6. anonymous
    • one year ago
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    hold on

  7. anonymous
    • one year ago
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    Take all the time you need.

  8. anonymous
    • one year ago
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    both groups show the same mean score?

  9. anonymous
    • one year ago
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    hmm not quite.

  10. anonymous
    • one year ago
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    Notice that bars are usually higher on grade 6

  11. anonymous
    • one year ago
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    That means more students in grade 6 are scoring higher than students in grade7.

  12. anonymous
    • one year ago
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    but do u still get grade 6 as ur answer if u do the mean?

  13. anonymous
    • one year ago
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    Yeah. Grade 6 kids are better than grade 7 kids.

  14. anonymous
    • one year ago
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    Grade 6 has higher mean score;)

  15. anonymous
    • one year ago
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    ok then thanks!

  16. anonymous
    • one year ago
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    no problem

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spraguer (Moderator)
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