Homework Help: math

Posted by chase on Friday, November 7, 2008 at 3:42pm.

For a class of 43 students, for a certain test, the mean grade is 67 and the standard deviation is 7.

a) how many students should receive a C?
b) how many students should receive a B?
c) what score would be necessary to obtain an A?

math - bobpursley, Friday, November 7, 2008 at 5:26pm
Nuts to this. Critieria for A, B, C is not something that is agreed to . Do you have some criteria for A, B, and C?
math - chase, Saturday, November 8, 2008 at 1:28pm
sorry thats all the question says. My teacher is weird she gives questions that say nothing and expects us to no what they mean.

Answer this Question

Related Questions

math - For a class of 43 students fora certain exam, the mean grade is 67 and ...
math - A class of 43 students took an exam. Their mean grade average is 67 and ...
math - A class of 43 students took an exam. They had a mean average of 67 and a ...
Statistics - Students were given an exam with 300 multiple-choice questions. The...
math - Students were given an exam with 300 multiple-choice questions. The ...
math - Miss C gives a test to the 10 students in her first-period algebra class...
math - Statistics: Analyze student exam scores Students were given an exam with ...
statistics - Three students take equivalent stress tests. Which is the highest ...
statistics - Three students take equivalent stress tests. Which is the highest ...
statistics - the dean of admissions in a large university has determined that ...

For Further Reading

First Name:
School Subject:
Answer: