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anonymous

  • one year ago

The stem-and-leaf plot shows the heights in centimeters of Teddy Bear sunflowers grown in two different types of soil. a) Describe the overlap of the two sets of data. b) Calculate the mean of each data set. c) Calculate the mean absolute deviation (MAD) of each data set. d) Which set is more variable? How do you know?

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  1. anonymous
    • one year ago
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    |dw:1433160099790:dw|

  2. anonymous
    • one year ago
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    Key: 9l6 means 69 Key: 5l8 means 58

  3. anonymous
    • one year ago
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    Sorry the numbers look a little uneven

  4. anonymous
    • one year ago
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    It's still the same though

  5. anonymous
    • one year ago
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    @rvc @HelpOfTheGods

  6. anonymous
    • one year ago
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    the asnwer to the question is c

  7. anonymous
    • one year ago
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    It's not a multiple choice question

  8. anonymous
    • one year ago
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    oh well u still have to do step c lol

  9. anonymous
    • one year ago
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    i was getting super confused i was like wtf

  10. anonymous
    • one year ago
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    lol yeah

  11. anonymous
    • one year ago
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    can you still help?

  12. anonymous
    • one year ago
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    @rvc @KendrickLamar2014

  13. only_hanaaa
    • one year ago
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    which parts do you need help in?

  14. anonymous
    • one year ago
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    All of them

  15. only_hanaaa
    • one year ago
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    okay, in part a you need to describe how both of the sets have the same numbers, for example they have number 70 in common, that's how they overlap

  16. only_hanaaa
    • one year ago
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    for part , you need to find all the number in each data set for soil A and B, add all those numbers up and divide them by how many numbers there are, for example if you had the data set {90, 79, 66, 80} and you added them up to get 315, now you divide it by 4 since there are 4 numbers and you get 78.75, you understanding?

  17. only_hanaaa
    • one year ago
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    ^^part B, sorry typo...

  18. anonymous
    • one year ago
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    ok

  19. anonymous
    • one year ago
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    What do you mean for part a you describe what numbers they have in common? (I'm pretty dumb)

  20. only_hanaaa
    • one year ago
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    okay i already gave you the answer for part a, but ill explain...overlap means how to they have the same numbers, and you really don't have to describe the numbers i dont know why they put that in the question, but yea i think 70 is the only number they have in common but id check gain just in case...

  21. mathmate
    • one year ago
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    @izzy529 Many math problems can be solve by starting to understand the terms used. Here the keyword is "stem and leaf plot". The moment you understand what the numbers in the plot mean, things will look MUCH easier. You can start by reading how a stem and leaf plot is constructed: http://www.purplemath.com/modules/stemleaf.htm Then write down the dataset (or interpret the plot) as two separate lists. The questions will then make a lot more sense. At that point, if you still have questions, please post again.

  22. anonymous
    • one year ago
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    ok thanks @mathmate

  23. mathmate
    • one year ago
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    You're welcome! :)

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