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rissyroo118

  • one year ago

WILL MEDAL ! 2005 |2006| 2007 |2008 Plant 1 20 4 25 10 Plant 2 25 5 5 48 Plant 3 20 8 20 32 Plant 4 43 10 10 47 Plant 5 40 11 15 48 During which year were the mean and median the same value? A)2005 B)2006 C)2007 D)2008

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  1. anonymous
    • one year ago
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    Well, to find the mean, you add up all the numbers and divide by the amount of numbers. And, to find the median you put the numbers from least to greatest and find the middle. (If there are 2 middles, you add them together and divide by 2) Im not going to do it for you, but i will help you find it.

  2. anonymous
    • one year ago
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    In 2005, the numbers from least to greatest are: 20, 20, 25, 40, 43

  3. rissyroo118
    • one year ago
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    so for the mean i got 446 so divide by how many numbers there are that would be 20 so 446/20 =22.3

  4. anonymous
    • one year ago
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    Actually, were working only on 2005 right now, so you would add 20 + 20 + 25 + 40 + 43 and divide it by 5. Try again :)

  5. rissyroo118
    • one year ago
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    128/5=25.6

  6. anonymous
    • one year ago
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    Correct! Great job! So, your mean in 2005 is 25.6 Now, we have to check if 25.5 is also the median.

  7. anonymous
    • one year ago
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    25.6*

  8. rissyroo118
    • one year ago
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    than 38/5=7.6 would be for 2006 than 75/5=15 for 2007 than 185/5=37 for 2008

  9. rissyroo118
    • one year ago
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    so now i should do the median for each year right?

  10. anonymous
    • one year ago
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    Excellent job rissyroo! Now, lets work on the medians :) Lets start by ordering them all from least to greatest.

  11. anonymous
    • one year ago
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    I did 2005 to get you started :) 2005: 20, 20, 25, 40, 43 2006: 2007: 2008:

  12. rissyroo118
    • one year ago
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    thank you :) so 2005: 20, 20, 25, 40 ,43 2006: 4, 5, 8, 10 ,11 2007: 5, 10 , 15 ,20 , 25 2008: 10 , 32 , 47 , 48 , 48

  13. anonymous
    • one year ago
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    Yep! Now, you can use your finger if you like (I do!) to find the number in the middle! (If there are 2 numbers in the middle, add them together and divide by 2)

  14. anonymous
    • one year ago
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    For example, the median of 2005 would be 25 because its in the middle :)

  15. rissyroo118
    • one year ago
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    8 & 15 i think right because we cancel out 2005 & 2008? find the number from 2006 & 2007. 8+15=23 23/2=11.5

  16. anonymous
    • one year ago
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    actually, there all 5's and 5 is an odd number, so there would be a middle.. the medians are below if this helps: Median: 25 = 2005 8 = 2006 15 = 2007 47 = 2008

  17. anonymous
    • one year ago
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    if you had 6 numbers, you would add the 2 in the middle to find your middle, but these are all in 5's so there is a middle for each data set.

  18. anonymous
    • one year ago
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    So, im placing the means and medians below. Tell me which year shares the same number :) Mean: 25.6 = 2005 7.6 = 2006 15 = 2007 37 = 2008 Median: 25 = 2005 8 = 2006 15 = 2007 47 = 2008

  19. rissyroo118
    • one year ago
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    i understand much better now since you broke it down and explained too me. thank you! the answer would be 2007

  20. anonymous
    • one year ago
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    Exactly! Very good! No problem rissyroo118, if you have any more problems just tag me and ill try to help the best i can :) You did a very good job! i hope this helps with your review/homework/test/etc.!

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