Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

A professor at a local university noted that the grades of her students were normally distributed with a mean of 78 and a standard deviation

  1. A professor at a local university noted that the grades of her students were normally distributed with a mean of 78 and a standard deviation of 10.(12 Points)
    1. The professor has informed us that 16.6 percent of her students received grades of A. What is the minimum score needed to receive a grade of A?(4)
    2. If 12.1 percent of her students failed the course and received F's, what was the maximum score among those who received an F?(4)
    3. If 33 percent of the students received grades of B or better (i.e., A's and B's), what is the minimum score of those who received a B?(4)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

New Trends In Shape Optimization

Authors: Aldo Pratelli, Günter Leugering

1st Edition

3319175637, 9783319175638

More Books

Students also viewed these Mathematics questions