Saturday
April 19, 2014

Homework Help: Statistic

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

Final averages are typically approximately normally distributed with a mean of 78 and a standard deviation of 11. Your professor says that the top 6% of the class will receive an A; the next 24%, a B; the next 41%, a C; the next 18%, a D; and the bottom 11%, an F. (Give your answers correct to one decimal place.)

(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.

Answer this Question

First Name:
School Subject:
Answer:

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...
Statistic - IQs among undergraduates at Mountain Tech are approximately normally...
Stats - the final grade averages from a fictional graduate statistics class are ...
statistic - Suppose a random sample of 25 students is selected from a community ...
Statistics - Suppose an automobile association reports that the average time it ...
Statistics - To conduct a valid regression analysis, both x and y must be ...
Statistics - To conduct a valid regression analysis, both x and y must be ...
algebra 2 - Students at a high school all took the same English test. The scores...

Search
Members