Tuesday

October 21, 2014

October 21, 2014

Posted by **Karen** on Monday, May 9, 2011 at 11:19am.

(a) A student will pass Ms. Green’s course if he or she receives a course grade of 70 or higher. A current student in Ms Green’s class is chosen at random. What is the probability that the student will NOT receive a passing grade in Ms. Green’s class?

(b) What is the probability of a student receiving a “B” (i.e. a course grade greater than or equal to 80, but less than 90) in Ms. Green’s class?

(c) What range of course grade values would be considered outliers for Ms. Green’s class?

- statistics -
**PsyDAG**, Monday, May 9, 2011 at 11:44ama. Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to that Z score.

b. Use same equation to find proportions between the two Z scores.

c. I would say any score > ± 3 SD.

I'll let you do the calculations.

**Answer this Question**

**Related Questions**

statistics - Percentage grades in a large physics class follow a normal ...

college - Suppose that, for a certain exam, a teacher grades on a curve. It is ...

stats - Suppose the mass of college students can be modeled by the normal ...

statistic - 1. Which of the following statements are correct? a. A normal ...

statistics - In the past a certain college has found that 35% of the students ...

Statistics - Which of the following statements are correct? 1.A normal ...

statistics - Which of the following statements are correct? a. a normal ...

Statistics - 1. Which of the following statements are correct? a. A normal ...

statistics - At a small college it is known from previous years that 35% of all ...

statistics - Q. The MBA department is concerned that dual degree students may be...