Ask questions and get helpful responses.

maths

In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 70 and a standard deviation of 8 Grades are to be assigned according to the following rule
. the top 10% receive A's, the next 20% receive B's;

the middle 40% receive C's the next 20% receive D's,

the bottom 10% receive F's

Find the lowest score on the final exam that would qualify a student for an A, a B: a C, and a D.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. You can play around with Z table stuff at
    davidmlane.com/hyperstat/z_table.html

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Still need help? You can ask a new question.