A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

help!!

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

    The dot plots below show the test scores of seventh- and eighth-grade students: src=" http://learn.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_practice_m8_g7_p.jpg " Based on visual inspection of the dot plots, which grade, if any, appears to have the higher mean score? Grade 7 Grade 8 Both groups show about the same mean score. No conclusion about mean score can be made from the data.

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

    @Nnesha

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

    i cant sorry

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

    i dont even see your dotted line thing it said error

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

    it say cookie error

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

    @markaskingalexandria1

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

    sorry cant help the page u added on ur question keeps saying error

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

    OMG!!

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

    wait do you have kik i cant take a pic and send it to you??

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

    *can

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

    nope i have hangout

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

    what is that?

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

    i got both jus cant get on kik tho

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

    ok im downloading it right now

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

    ok whats your username

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

    @markaskingalexandria1

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

    for hangout

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

    yes

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

    The price of some houses in a neighborhood are shown below: House Price A $120,000 B $130,000 C $140,000 D $150,000 E $1,110,000 Based on the data, should the mean or the median be used to make an inference about the price of the houses in the neighborhood? Median, because there is an outlier that affects the mean Mean, because there are no outliers that affect the mean Median, because it is in the center of the data Mean, because it is in the center of the data

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

    Median, because it is in the center of the data

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

    thank you!!

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

    The following table shows the data collected from a random sample of 100 middle school students on the number of hours they play outdoor games every week: Weekly Duration of Outdoor Games Time (in hours) 0–2 3–5 6–8 9–11 Number of Students 30 62 8 0 There are 1,200 students in the school. Based on the sample proportion, how many students in the school would be expected to play outdoor games for at least three hours every week? 744 840 960 1,104

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

    idk this one

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

    Jack wants to know how many families in his small neighborhood of 60 homes would help organize a neighborhood fund-raising party. He put all the addresses in a bag and drew a random sample of 30 addresses. He then asked those families if they would help organize the fund-raising party. He found that 12% of the families would help organize the party. He claims that 12% of the neighborhood families would be expected to help organize the party. Is this a valid inference? No, this is not a valid inference because he asked only 30 families No, this is not a valid inference because he did not take a random sample of the neighborhood Yes, this is a valid inference because he took a random sample of the neighborhood Yes, this is a valid inference because the 30 families speak for the whole neighborhood

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

    ??

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

    Yes, this is a valid inference because he took a random sample of the neighborhood

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

    its still not letting me see it

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

    The following table shows the data collected from a random sample of 100 middle school students on the number of hours they play outdoor games every week: Weekly Duration of Outdoor Games Time (in hours) 0–2 3–5 6–8 9–11 Number of Students 30 62 8 0 There are 1,200 students in the school. Based on the sample proportion, how many students in the school would be expected to play outdoor games for at least three hours every week? 744 840 960 1,104

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

    @MTALHAHASSAN2

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

    @MTALHAHASSAN2 ??

  31. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

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

    the answer..?

  33. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait a sec

  34. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    let me think

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

    ok

  36. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I will say look at 3-5 hours, and the sample is from 100 students, and we have 62 students who play at least 3 - 5 hours a day. So that's 62%, just multiply 1200 by 62%.

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

    so whats the answer

  38. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i am getting 744 but not sure if is it right or not

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

    ok, i got the same thing

  40. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i will say plz conform from someone else

  41. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    by the which grade question is it??

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

    huh?

  43. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Michele_Laino

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

    the experimental frequency is: 62/100=0.62, so the requested number is: (62/100)*1200=...?

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

    ?

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

    the proportion of student which play outdoor games is: 62/100, namely 62 students over 100 students in total

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

    so whats the answer

  48. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    744

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

    ok thanks!! mind helpig me with a few more?

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

    now we have to write that proportion for a sample of 1200 students, so the requested number of students, which play outdorr games, for a sample of 1200 students, is: \[\Large \frac{{62}}{{100}} \cdot 1200 = ...?\]

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

    outdoor*

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

    <img src=" http://learn.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_practice_m8_g8_c2.jpg " alt=" Which of the following inferences can be made using the dot plots? Group X has a higher mean than group Y. Group Y has a higher mean than group X. There is no overlap between the data. The range of each group is different.

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

    @Michele_Laino @MTALHAHASSAN2

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

    I'm sorry I see only an error message

  55. MTALHAHASSAN2
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    same

  56. 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.