Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

salman_09 Group Title

A list of numbers has an average of 48 and an SD of 12. The list is transformed by subtracting 3 from each entry and then dividing the result by 5. what would be new SD of transform list?

  • one year ago
  • one year ago

  • This Question is Closed
  1. Kainui Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Consider that subtracting 3 from each would just simply lower the average by 3, but the separation between numbers would still be the same distance apart, meaning your standard deviation would be exactly the same. Dividing each number by 5 would then cause the numbers to all be much more closely placed, meaning the deviation between them also decreases.

    • one year ago
  2. salman_09 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so what would be exact SD?

    • one year ago
  3. salman_09 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ?

    • one year ago
  4. salman_09 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    can u plz tell me the exact new SD?

    • one year ago
    • Attachments:

See more questions >>>

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.