Posted by **Sarah** on Sunday, March 24, 2013 at 5:22pm.

The grades on the final examination given in a large organic chemistry class are normally distributed with a mean of 72 and a standard deviation of 8. The instructor of this class wants to assign an “A” grade to the top 10% of the scores, a “B” grade to the next 10% of the scores, a “C” grade to the next 10% of the scores, a “D” grade to the next 10% of the scores, and an “F” grade to all scores below the 60th percentile of this distribution. For a letter grade of B, find the lowest acceptable score within the established range

- statistics -
**test**, Saturday, April 5, 2014 at 3:24pm
76.8

## Answer this Question

## Related Questions

- statistics - The scores on an economics examination are normally distributed ...
- statistics - Percentage grades in a large physics class follow a normal ...
- statistics - An instructor in a large lecture class found at the end of the ...
- statistics - A professor informs her class that a test is very difficult, but ...
- statistics - the dean of admissions in a large university has determined that ...
- statistics - Suppose that you have just taken a test and earned a score of 90%. ...
- statistics - a teacher decides to fail 25% of the class.Examination marks are ...
- prob and stats - The scores on an Economics examination are normally distributed...
- statistics - In one history class, 34 students took an exam. The mean of the ...
- Statistics - 18. The Intelligence Quotient (IQ) test scores are normally ...

More Related Questions