A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Foxythepirate0984

  • one year ago

Here are 10 test scores: 30, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these scores is 74. Does this set have an outlier and, if so, how does removing it affect the mean? A. The set has 30 as an outlier and removing it decreases the mean by about 10. B. This data set has no outliers. C. The set has 30 as an outlier and removing it decreases the mean by about 5. D. The set has 30 as an outlier and removing it increases the mean by about 5. @autumnroseT

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

    well 30 is definitely the outlier, so its not B. the way to solve this is to add all the numbers together (without adding 30) and then dividing the answer by 9

  2. Foxythepirate0984
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A ?

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

    this new mean would be 78.8 so no not A

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

    because instead of dividing it by 10 when we were adding 30, we'll be dividing by only 9 so the answer will be greater

  5. Foxythepirate0984
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    D

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

    yes :)

  7. 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.