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anonymous

  • one year ago

What is the means-to-MAD ratio of the two data sets, expressed as a decimal to the nearest tenth? Data Set 1: {14, 18, 21, 15, 17} Data Set 2: {15, 17, 22, 20, 16}

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  1. anonymous
    • one year ago
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    I think its 1.5

  2. anonymous
    • one year ago
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    @iGreen

  3. YoungStudier
    • one year ago
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    Ok, so what is the mean for each data set?

  4. anonymous
    • one year ago
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    @Luigi0210

  5. YoungStudier
    • one year ago
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    I am literally doing this stuff right now in my math course.

  6. anonymous
    • one year ago
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    umm xD

  7. anonymous
    • one year ago
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    1 sec

  8. anonymous
    • one year ago
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    for set 1: 17 and Set 2: 18

  9. YoungStudier
    • one year ago
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    Ok, gimme one second, I have to look up the formula in my book and I'll double check the things as we go through them.

  10. anonymous
    • one year ago
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    ok xD

  11. anonymous
    • one year ago
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    Wait the answer would be 1.1?

  12. anonymous
    • one year ago
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    Because you divide 18 by 17

  13. YoungStudier
    • one year ago
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    urm, one moment, I'm helping two other people as well so I gotta check the means quick

  14. anonymous
    • one year ago
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    ok

  15. anonymous
    • one year ago
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    I know its that because i retook them Because i didnt pass it the first time Btw not a test But i did get to retake it

  16. YoungStudier
    • one year ago
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    Ok, so the means are right, now we have to find the MAD

  17. anonymous
    • one year ago
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    But the questions did change

  18. anonymous
    • one year ago
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    xD

  19. anonymous
    • one year ago
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    how do you get mad?

  20. anonymous
    • one year ago
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    For first one it is 2 and 2nd one it is 2.4

  21. YoungStudier
    • one year ago
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    I'll double check it, one moment

  22. anonymous
    • one year ago
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    MAD - Mean absolute deviation of a component of a data set is the total difference between that component and a given point. In general, the central tendency is the measure of a point from which the deviation is measured, more frequently the median or sometimes the mean of the data set. The Mean Absolute Deviation also called as average deviation of a data set {x1, x2, ..., xn} is the average of the absolute deviations and is a abstract statistic of statistical distribution or set of data. The mean absolute deviation often abbreviated as MAD and calculated from the formula

  23. anonymous
    • one year ago
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    Total Inputs(N) =(15, 17, 22, 20, 16) Total Inputs(N)=5 Mean(xm)= (x1+x2+x3...xN)/N Mean(xm)= 90/5 Means(xm)= 18 ------------------------------------------- MAD= 1/(N)*(|x1-xm|+|x2-xm|+..+|xN-xm|) =1/5(|15-18|+|17-18|+|22-18|+|20-18|+|16-18|) =1/5(3+1+4+2+2)) =2.4

  24. YoungStudier
    • one year ago
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    Ok, so your MAD are correct

  25. anonymous
    • one year ago
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    :)

  26. YoungStudier
    • one year ago
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    now we subtract the first data set mean from the second data set mean

  27. YoungStudier
    • one year ago
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    so 17-18=?

  28. YoungStudier
    • one year ago
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    @MasterTeemo

  29. anonymous
    • one year ago
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    Ok back @YoungStudier

  30. anonymous
    • one year ago
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    -1

  31. YoungStudier
    • one year ago
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    ok, so now we divide that by the larger MAD

  32. anonymous
    • one year ago
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    6.4?

  33. anonymous
    • one year ago
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    so 6.4/-1?

  34. YoungStudier
    • one year ago
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    mm, no. Hold on.

  35. anonymous
    • one year ago
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    wait it was 2.4 xD

  36. YoungStudier
    • one year ago
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    So it would be -1/2.4=?

  37. anonymous
    • one year ago
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    yeh

  38. anonymous
    • one year ago
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    -0.41666666666

  39. anonymous
    • one year ago
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    xD

  40. anonymous
    • one year ago
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    0.4? is the answer?

  41. YoungStudier
    • one year ago
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    Do you have any answer choices for this one?

  42. anonymous
    • one year ago
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    nope

  43. anonymous
    • one year ago
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    its a type in

  44. YoungStudier
    • one year ago
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    does it say to round to the nearest number or somethin?

  45. YoungStudier
    • one year ago
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    @MasterTeemo ?

  46. anonymous
    • one year ago
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    Yep

  47. anonymous
    • one year ago
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    expressed as a decimal to the nearest tenth?

  48. YoungStudier
    • one year ago
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    One moment

  49. anonymous
    • one year ago
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    would it have been 18-17 then 1/2.4?

  50. anonymous
    • one year ago
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    then the answer be 0.4?

  51. anonymous
    • one year ago
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    or no?

  52. anonymous
    • one year ago
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    http://ncalculators.com/statistics/mean-absolute-deviation-calculator.htm is what i used to get the MAD

  53. YoungStudier
    • one year ago
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    Nope, -0.42 www.calculatorsoup.com/calculators/math/roundingnumbers.php type the number into the calculator

  54. anonymous
    • one year ago
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    But i has to be -0.4 xD

  55. anonymous
    • one year ago
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    it*

  56. YoungStudier
    • one year ago
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    did you type it in?

  57. anonymous
    • one year ago
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    yep

  58. YoungStudier
    • one year ago
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    so it is -0.42

  59. anonymous
    • one year ago
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    -0.4

  60. anonymous
    • one year ago
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    Because the bar thing has a dropdown choice you you have to pick tenths

  61. YoungStudier
    • one year ago
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    Oh, sorry, I didn't realize. Yes, -0.4 is correct

  62. anonymous
    • one year ago
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    :)

  63. anonymous
    • one year ago
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    XD only on question 2 Now time for question 3 :)

  64. YoungStudier
    • one year ago
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    LOL, I forgot about the option. m'kay, do you need help with that one also?

  65. anonymous
    • one year ago
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    yeh

  66. anonymous
    • one year ago
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    3/5 XD

  67. anonymous
    • one year ago
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    Alexander found the means-to-MAD ratio of two data sets to be 0.8. What can he conclude about the distributions? A. They are similar. B. They are somewhat similar. C. They are different. D. They are identical.

  68. anonymous
    • one year ago
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    ill open new questions and tag you and give you 5 medals k?

  69. YoungStudier
    • one year ago
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    ok...

  70. anonymous
    • one year ago
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    xD dont worry i wont lie like most people do

  71. YoungStudier
    • one year ago
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    Oh no, I've never had that happen to me. I don't actually really care that much about the medals LOL

  72. anonymous
    • one year ago
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    LOL

  73. anonymous
    • one year ago
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    So The answer would be B for this next q?

  74. YoungStudier
    • one year ago
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    Ok, so what do you think the answer is to the second one you posted here?

  75. anonymous
    • one year ago
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    B?

  76. YoungStudier
    • one year ago
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    mmm, no.

  77. anonymous
    • one year ago
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    xD

  78. anonymous
    • one year ago
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    oh wait its 0.8 so no

  79. anonymous
    • one year ago
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    would it be Identical?

  80. YoungStudier
    • one year ago
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    Remember: If the ratio is less than or equal to one, the two distributions are similar. What do you think the answer is now?

  81. anonymous
    • one year ago
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    D?

  82. YoungStudier
    • one year ago
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    I don't remember reading anything about ratios being identical in the lesson, do you?

  83. anonymous
    • one year ago
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    nope xD because i really didnt read it

  84. anonymous
    • one year ago
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    i kinda read part but not all

  85. anonymous
    • one year ago
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    so C? xD

  86. YoungStudier
    • one year ago
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    Reread what I said a little bit above. It's not C

  87. anonymous
    • one year ago
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    oh ok So A?

  88. anonymous
    • one year ago
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    xD sorry wasnt paying attenchen

  89. YoungStudier
    • one year ago
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    Yep! A is correct. XD I'm no iGreen, but hey, I actually read through this lesson (I haven't done the bookwork or test yet. LOL)

  90. anonymous
    • one year ago
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    Some of my friends just said it was D xD

  91. anonymous
    • one year ago
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    majesty777: Nope D, they are identical because it says TWO sets of data of 0.8

  92. YoungStudier
    • one year ago
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    Hm..... Okay....Now you made me confused. O_O

  93. anonymous
    • one year ago
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    xD

  94. anonymous
    • one year ago
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    majesty777: Well it says two sets of the SAME 0.8 that is identical

  95. anonymous
    • one year ago
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    Who DO I Beleve?

  96. anonymous
    • one year ago
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    @surjithayer

  97. anonymous
    • one year ago
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    ok ill go with a

  98. anonymous
    • one year ago
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    Data Set 1 has a mean of 54 and a MAD of 4. Data Set 2 has a mean of 60 and a MAD of 2. What can you conclude about the two distributions? Choose exactly two answers that are correct. A. The means-to-MAD ratio is 3. B. The means-to-MAD ratio is 1.5. C. The distributions are similar. D. The distributions are somewhat similar.

  99. anonymous
    • one year ago
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    B and C?

  100. YoungStudier
    • one year ago
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    B is correct, but not C

  101. anonymous
    • one year ago
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    So B AND D?

  102. YoungStudier
    • one year ago
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    And the question with -0.4, I was wrong, that is actually 0.4 (positive) because of the absolute value lines around the mean-mean/MAD larger

  103. anonymous
    • one year ago
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    oh ok

  104. anonymous
    • one year ago
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    Hailey records the weights of five dogs of one breed and five dogs of another breed. What can she infer about the weights of Breed 1 dogs and Breed 2 dogs? Breed 1: {45, 38, 49, 52, 51} Breed 2: {36, 35, 44, 50, 40} A. Breed 1 dogs and Breed 2 dogs have similar weight distributions. B. Breed 1 dogs and Breed 2 dogs have somewhat similar weight distributions. C. Breed 1 dogs and Breed 2 dogs have no overlap in their weight distributions. D. Breed 1 dogs and Breed 2 dogs have identical weight distributions.

  105. YoungStudier
    • one year ago
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    Yes, It's B and D for the one

  106. YoungStudier
    • one year ago
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    Not this one, the one before, ugh sorry, I thought it posted, guess not...

  107. anonymous
    • one year ago
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    Yeh

  108. anonymous
    • one year ago
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    I know

  109. anonymous
    • one year ago
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    MAD of Breed 1: 4.4 Mean: 47 MAD of Breed 2: 4.8 Mean: 41

  110. anonymous
    • one year ago
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    47-41/4.8 = 1.25

  111. YoungStudier
    • one year ago
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    So: If the ratio is between 1 and 2.5, then the distributions are somewhat similar.

  112. anonymous
    • one year ago
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    D Or B?

  113. anonymous
    • one year ago
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    Ok Ima See What I got XD

  114. anonymous
    • one year ago
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    Are you sure the answers you told be are correct?

  115. anonymous
    • one year ago
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    Because i need this done xD

  116. YoungStudier
    • one year ago
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    IT would be B. I believe so, if you don't believe me try googling them, a couple open study, brainly, or yahoo answers might show up.

  117. anonymous
    • one year ago
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    :D 100%!

  118. anonymous
    • one year ago
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    Best PERSON ON OS!

  119. anonymous
    • one year ago
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    You AND Igreen ARe the BEst!

  120. anonymous
    • one year ago
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    Well Gtg xD

  121. YoungStudier
    • one year ago
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    LOL, thanks. ^_^ I just helped you through it, you did the hard part. :D Good job!

  122. YoungStudier
    • one year ago
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    See ya!

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