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

mameadows Group Title

help!!! when the selling price per item on 1000 items were randomly selected, they revealed the mean selling price was $10 with a standard deviation of $2. what percent of the shares sold for $12 or more?

  • one year ago
  • one year ago

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

    Assuming you are talking about a normally distributed selling price: $12 is $2 (1 standard deviation) above the mean. By the empirical rule, 68% of the data is within 1 standard deviation of the mean. So, there is 34% of the data between $10 and $12, and 50% under $10. 100-34-50=100-84=16% of the data is over $12.

    • 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...


  • 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.