1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Need some help with this problem

  1. Apr 19, 2009 #1
    2. Suppose that scores on a standardized test in a school are normally distributed with a mean 720 and standard deviation 83.
    a. find the percentage of students scoring less than 650
    b. find the percentage scoring between 500 and 780
    c. if you were told that a student scored in 97th percentile, what could you say about that students score?

    thanks in advance
     
  2. jcsd
  3. Apr 19, 2009 #2

    Moonbear

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    You need to show your own attempts at a solution before you can get help.
     
  4. Apr 20, 2009 #3
    You posted the same thing here and got the same response. You're not going to get help without any work.
     
  5. Apr 20, 2009 #4
    Last edited: Apr 20, 2009
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook