Posted by **Jane Segurra** on Wednesday, March 20, 2013 at 9:26pm.

Final averages are typically approximately normally distributed with a mean of 66 and a standard deviation of 10.5. Your professor says that the top 5% of the class will receive an A; the next 15%, a B; the next 47%, a C; the next 22%, a D; and the bottom 11%, an F.

(a) What average must you exceed to obtain an A?

(b) What average must you exceed to receive a grade of C or better?

(c) What average must you obtain to pass the course? (You'll need a D or better.)

## Answer This Question

## Related Questions

- STAT 250 Probability - Final averages are typically approximately normally ...
- STATS HELP - Final averages are typically approximately normally distributed ...
- Statistics 250 - Final averages are typically approximately normally distributed...
- Statistic - Final averages are typically approximately normally distributed with...
- statistics - Professor Smith gave a final exam in her history class. The scores ...
- STAT - The score on a test are normally distributed with a mean of 75 and a ...
- Analytical Skills - If your score on a statistics exam was 76 and the professor ...
- math - stat theory says approximately 68% of measurements lie between +- one ...
- Statisitics - In a large section of a Chemistry class, the points for the final ...
- statistics - Can you please tell me how to solve for the following? Pedro took ...

More Related Questions