A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

The table below shows data for a class's mid-term and final exams: Which data set has the smallest IQR? They have the same IQR Mid-term exams Final exams There is not enough information

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Mid-Term Final 96 100 95 85 92 85 90 83 87 83 86 82 82 81 81 78 80 78 78 78 73 75

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    does this have to be done by hand or can you use a calculator/website?

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    u can use calculator

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    enter your data here http://www.alcula.com/calculators/statistics/dispersion/ If you have a graphing calculator you can create a table and pull out the statistical info as well

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    basically to find IQR you need to 1. put the numbers in order 2. find the median → this is the number in the middle of the data set, or the average of the 2 middle numbers if there is an even amount of numbers 3. Find the 1st and 3rd quartiles. The 1st quartile is the median of the first half of numbers (the numbers less than the median). The 3rd quartile is the medial of the second half of number. 4. IQR = 3rd quartile - 1st quartile

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no what did you get for IQR when you entered the numbers?

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I got for the mean on the mid term 85.4,the mean for the final I got 73.4, for the median I got for the mid term 86 and for the final I got 82.

  8. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Wait so they have the same IRQ?

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the question is about the IQR. All you have to do is enter the numbers on the website and it will tell you what the IQR is for each list

  10. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it will give every piece of statistical information you could possibly need

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    For the IRQ i got 9.75

  12. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you will get 9.75 if you put them all in together. You have to put in the midterm numbers and get an IQR for them. Then you have to put in the final numbers to get and IQR for them. Then you compare the two IQRs.

  13. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So its the final exam, it has 7 Mid term has 12

  14. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

  15. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.