Posted by **bikie** on Tuesday, April 12, 2011 at 4:53pm.

I have a problem on standard deviation, and I will need some help with it.

Problem:

Each professor in an English class give an A to students scoring above 90 and a F to those scoring below 60.

Professor 1 has a normal distribution with a mean of 74 and standard deviation 7

Professor 2 has a normal distribution with a mean of 78 and standard deviation 18.

Which professor gives the higher proportion of A's?

Thank you for your help!)

## Answer This Question

## Related Questions

- stats - scores on a university examination are normally distributed with a mean ...
- Statistics - A statistics professor gives a test and finds that the scores are ...
- English- emailing response to professor - So I emailed a professor asking the ...
- C++ - class professor {}; class teacher : public virtual professor {}; class ...
- statistics - Professor Smith gave a final exam in her history class. The scores ...
- CAN YOU HELP ME??? Math Connections Acadamy - 7th grader at Connexus and I need...
- Normal Probability Distribution - A professor at a local college noted that the ...
- Statistics - A math professor notices that scores from a recent exam are ...
- physics - In the figure below, a student at a window on the second floor of a ...
- physics - In the figure below, a student at a window on the second floor of a ...

More Related Questions