Sunday

March 29, 2015

March 29, 2015

Posted by **Bibi** on Wednesday, September 26, 2012 at 10:25pm.

(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.)

You may need to use the appropriate table in Appendix B to answer this question.

- Statistic -
**PsyDAG**, Thursday, September 27, 2012 at 10:51amZ = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" (That should be Appendix B.) to find the proportions and their Z scores. Insert values in above equation and calculate for the scores.

**Answer this Question**

**Related Questions**

STAT 250 Probability - Final averages are typically approximately normally ...

STAT 250 Probability - Final averages are typically approximately normally ...

Statistics 250 - Final averages are typically approximately normally distributed...

statistics - Professor Smith gave a final exam in her history class. The scores ...

Statisitics - In a large section of a Chemistry class, the points for the final ...

Analytical Skills - If your score on a statistics exam was 76 and the professor ...

statistics - The grades on the final examination given in a large organic ...

STAT - The score on a test are normally distributed with a mean of 75 and a ...

social science statistics - a professor was curious to whether the students in a...

statistics - A professor informs her class that a test is very difficult, but ...