Question: The marks in an economics class are normally distributed with

The marks in an economics class are normally distributed, with a mean of 65% and a standard deviation of 12%.
a. What percentage of the class passed (that is, received a mark of 50% or higher)?
b. What percentage of the class received a mark of 45% or lower?
c. What percentage of the class received a mark between 50% and 75%?
d. What percentage of the class received a mark of 90% or higher?

View Solution:


Sale on SolutionInn
Sales0
Views31
Comments
  • CreatedJuly 12, 2015
  • Files Included
Post your question
5000